Choice B is the right option since the cooling is fast.
The minerals may not have enough room to develop owing to a sudden cooling and therefore their structure is delicate and glassy. The composition of an igneous rock depends on how quickly the magma is cooled when the volcanic eruptions occur. Slow cooling allows big crystals to grow while rapid cooling allows tiny crystals to appear.
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Hope this helps!
Brainliest would be great!
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
The function of the choroid layer of the eye is to ________. The function of the choroid layer of the eye is to ________. regulate the amount of light entering the eye prevent light from scattering inside the eye produce gross eye movements release tears onto the anterior surface of the eye refract light and focus it on the retina
Answer:
The answer is "prevent the light from scattering inside the eye".
Explanation:
Choroid layer is located behind the retina in the eye and it's function is to adjust the amount of light absorbed and prevent it from scattering inside the eye to achieve a clear and focused image.
I hope this answer helps.
"As a healthier alternative to French fries, some fast food outlets offer pre-sliced, bagged apples as a side option. The ingredients list often reads, "Apples and Ascorbic Acid." Ascorbic acid is another name for vitamin C. What role does the ascorbic acid play in the product?"
Answer:
Answer in explanation
Explanation:
Absorbic Acid is used as an antioxidant and it helps the product stay fresh and look good in color. It will also add a citrus flavor and it prevents microbial growth which will not let it spoil easily
The body needs it to aid in wound healing, improve iron absorption from plant-based meals, and boost the immune system. It functions as an antioxidant to shield your cells from free radicals, which may contribute to cancer, heart disease, and other illnesses.
What role does the ascorbic acid play in the product?Fruit development and postharvest storage are significantly regulated by ascorbic acid, which also impacts fruit ripening and stress tolerance. It has been extensively investigated how plants use ascorbic acid in their metabolism.
Some people may experience negative side effects from vitamin C, including headaches, nausea, heartburn, and stomach cramps. With bigger doses comes a greater likelihood of experiencing these adverse effects.
Therefore, utilized as an antioxidant, absorbic acid keeps products fresh and attractively colored. Additionally, it will give it a citrus flavor and stop microbial growth, which will keep it from spoiling quickly.
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Which statement best describes the Coriolis effect?
A. The oceans that receive more rain have water with lower salinity.
B. Closer to the poles, the temperature of ocean water decreases.
C. The rotation of Earth causes the apparent path of ocean currents
to curve,
D. Ocean water becomes denser the deeper you go underwater.
The statement best describes the Coriolis effect is C. The rotation of Earth causes the apparent path of ocean currents to curve.
What is The Coriolis impact?This is an obvious force, relative to the earth's floor, that reasons deflection of shifting items to the proper withinside the Northern Hemisphere and to the left withinside the Southern Hemisphere because of the earth's rotation.
The Coriolis effect is an apparent force, relative to the earth's floor, that motives deflection of moving objects to the right withinside the Northern Hemisphere and to the left withinside the Southern Hemisphere due to the earth's rotation.
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why is a robot a non living thing?
Explanation:
No, A robot is a non-living thing. It is because although a robot has the ability to do work, walk or run and even recent researches even made a robot to think on their own. But they do not have feelings. If ROBOT was a living thing then its works would be automatic and it would not require human help.
Answer:
view explanation
Explanation:
It is true robots have the ability to do almost anything but robots don’t have the ability of living organisms to reproduce. They work without cells which make them non-living, furthermore, they lack emotions.
A diploid human cell normally has 23 pairs of homologous chromosomes, but as a woman ages, the chances of nondisjunction increase. Imagine that a gamete is produced that received two copies of chromosome 21 due to nondisjunction during meiosis II. If the gamete is fertilized with a normal sperm, the embryo's cells will contain _______ chromosomes.
47 chromosomes instead of 46 because there are 3 chromosomes in pair 21. This is called Down syndrome, described most recently by Lejune in 1958
If the gamete is fertilized with a normal sperm, the embryo's cells will contain 47 chromosomes. The correct option is B.
What is nondisjunction?Nondisjunction refers to the phenomenon of unequal separation in meiosis.
If a haploid gamete has a missing chromosome due to nondisjunction, the diploid zygote it forms with another gamete will have only one copy of that chromosome from the other parent, a condition known as monosomy.
Nondisjunction occurs when the separation fails, causing both sister chromatids or homologous chromosomes to be drawn to one pole of the cell.
Mitotic nondisjunction can occur when topoisomerase II, condensin, or separase are inactivated.
Because pair 21 contains three chromosomes, there are 47 chromosomes rather than 46.
Thus, the correct option is B.
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Your question seems incomplete, the missing options are:
1. 46
2. 47
3. 24
4. 23
What is Mary and Jim’s hypothesis?
Answer:
In this case, the scientist want to test the presence of the limonite in the yellow rocks, So, proposed hypothesis should include the color of rock they want to observe and the posssible outcome, which need to be tested. So, a proposed hypothesis can be: The rocks, which have yellow color are made up of mineral lime.
Answer:
They hypothesized that the rock includes large pieces of the mineral limonite.
Explanation:
...
Which of the following allows the passage of small molecules between animal cells? Please choose the correct answer from the following choices, and then select the submit answer button. desmosomes nucleoli tight junctions black holes gap junctions
Answer:
cell membrane
Explanation:
it has small pores thus it is semi permeable
Which of the following statements are true? Multiple Choice Muscles work in antagonistic pairs because if one muscle pushes during contraction, the opposing muscle across the joint must pull. Muscles work in antagonistic pairs because muscles lengthen during contraction. Muscles work in antagonistic pairs because tendons lengthen during contraction. Muscles work in antagonistic pairs because if one muscle shortens during contraction, the opposing muscle across the joint must relax.
Answer
if one muscle shorten during contraction the opposing muscle across the joint must relax
The true statement among the statements above is that Muscles work in antagonistic pairs because if one muscle shortens during contraction, the opposing muscle across the joint must relax.
For better understanding, we have to know why muscle works in antagonistic pair and the reason for this pairing.
As the name implies, Antagonistic pairs is when muscles are set down or grouped in pairs. that is when a muscle tightens or shortens (contrast) and pulls, the other muscle will then be in a relaxed state so as to allow movement.
There is a great need or importance for antagonistic pairs in muscles. That is Muscles do perform its role in an antagonistic pairs because they can only reduce (shorten)making or taking the movement in one direction. There is also the need for another muscle that shortens in order to lead/make movement go in the opposite direction.
Example of this antagonistic muscle pairs is commonly found in insects where their exoskeleton in the hind leg of the insect gives room for the muscles to work in antagonistic pairs, also the tibia flexes and others.
therefore, we can conclusively say that the statement that Muscles work in antagonistic pairs because if one muscle shortens during contraction, the opposing muscle across the joint must relax is true.
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What are the three stop codons? What is the start codon?
Answer:
UGA, UAA, and UAG
Explanation:
Each three-letter sequence of mRNA nucleotides corresponds to a specific amino acid, or to a stop codon. UGA, UAA, and UAG are stop codons
Answer:not sure
Explanation:
Not sure
Which definition best describes polygenic traits? A. traits that are carried on linked genes B. traits that affect several features C. traits that are controlled by multiple genes D. traits that express both alleles of a gene pair
Answer:
The answer is C.Traits that are controlled by multiple genes.
Explanation:
C. traits that are controlled by multiple genes
I JUST TOOK THE TEST AND GOT IT CORRECT!
If 30% of the bases in a particular DNA molecule are guanine (G), what percentage of the bases would be thymine (T)? Explain your reasoning.
Answer:
20%
Explanation:
There are four bases in DNA: guanine (G), cytosine (C), adenine (A), and thymine (T). They all have to add up to 100%. In DNA, guanine pairs with cytosine and adenine pairs with thymine.
If guanine is 30%, cytosine is also 30%.
30% + 30% = 60%
Now subtract from 100%.
100% - 60% = 40%
Thymine and Adenine make up 40% of the DNA. Now divide by 2 since there are two nitrogenous bases.
40% ÷ 2 = 20%
Guanine is 30%, Cytosine is 30%, Adenine is 20%, and Thymine is 20% for a total of 100% of the DNA.
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Which sustainable practice is paired correctly with its impact on the environment? Using bamboo results in an increased use of forest trees. Practicing contour plowing results in a need for more land. Setting irrigation systems to run longer results in a reduction of water use. Building more wind farms results in a reduction of fossil fuel use.
Hey there! I'm happy to help!
Using bamboo results in an increased use of forest trees. Bamboo is a grass, not a tree. I don't see how using more bamboo would increase your usage of trees. This option is incorrect.
Contour plowing is when your plow around the contour lines (which are basically like elevation lines) of a hill or slope. This actually reduces soil erosion and lasting effects of natural storms and disasters, so it does not result in a need for more land. This option is incorrect.
Setting irrigation systems to run longer results in a reduction of water use. Irrigation is a system of watering, so you need water for it. It would not reduce water use. This option is incorrect.
Building more wind farms results in a reduction of fossil fuel use. If you are getting your power from renewable resources like the wind or the sun, you will not need to use as many fossil fuels, and this would reduce their use. This option is correct.
Have a wonderful day!
The practices that aid in economic, human and ecological dynamism and health is called sustainable practices. This procedure helps in conservatively preserving the limited sources.
The correct pairing is:
Option D. Constructing more wind farms results in a decrease in fossil fuel usage.
The practices can be explained as:
Using too many bamboos will result in the degradation of lands and increased soil erosion. It will not affect the usage of other forest trees.The method of agriculture practice in which the ploughing is done near the contour lines is called contour ploughing and does not need much land also helps in reducing soil erosion and disasters.The irrigation system conserves water and is a beneficial technique of watering the agricultural lands with an efficient amount of water.Wind energy generates more energy and power which is a renewable source compared to fossil fuels and reduces the use of petrol, diesel and coal.Therefore, option D is correct.
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The tides come in and out every day like clockwork. The flowing in and out is called Select one: a. ebb and flow. b. coming and going. c. internal movement and external movement. d. entering and leaving.
Answer:
a. ebb and flow.
Explanation:
Hope it helps.
The flowing in and out of tides is called ebb and flow. Details about tides can be found below.
What is a tide?A tide is the periodic change of the sea level, particularly when caused by the gravitational influence of the sun and the moon.
According to this question, a tide comes in and out every day like clockwork.
The in-flowing tide is called flow while the out-flowing tide is called ebb. Therefore, the flowing in and out of tides is called ebb and flow.
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Which of the following mutations is NOT a point mutation? A. Silent mutation B. Nonsense mutation C. Missense mutation D. Insertion mutation
the answer is Insertion mutation :)
(search up "types of mutations")
Point mutation is the alteration of the single nucleotide base in the sequence. Insertion mutation is not a type of point mutation. Thus, option D is correct.
What is point mutation?A point mutation is a modification and change in the base of the genetic sequence. In this type of mutation, only a single nucleotide base is altered. Point mutations are categorized as transition mutations and transversion mutations.
Silent, Nonsense, and missense are the transversion type of point mutation. In this mutation, the purines get altered by pyrimidines and vice versa. On the other hand, insertion mutation is the frameshift mutation.
Therefore, insertion is not a type of point mutation.
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A human germ cell experiences a meiotic disjunction of chromosome 21 in meiosis I. Which of the following statements best describes the pattern you would expect to observe in the resulting gametocytes?
A. Two cells will have 24 chromosomes, and two cells will have 22 chromosomes.
B. One cell will have 24 chromosomes, one cell will have 22 chromosomes, and two cells will have 23 chromosomes.
C. All cells will have 23 chromosomes.
D. Two cells will have 23 chromosomes, and two cells will have 22 chromosomes.
E. Two cells will have 24 chromosomes, and two cells will have 23 chromosomes.
Answer:
Two cells will have 24 chromosomes, and two cells will have 22 chromosomes.
Explanation:
Which of the following best expresses the concept of natural selection?
A) differential reproductive success based on inherited traits
B) inheritance of acquired characteristics
C) change in response to need
D) a process of constant improvement, leading eventually to perfection
E) survival of the fastest
Answer:
The correct answer is - option A. differential reproductive success based on inherited traits
Explanation:
Natural selection is the differential reproductive and survival of particular population due to the difference of shared characteristics that are inherited in a specific environment. In other words natural selection is differential reproductive success based on inherited traits.
The term differential reproductive success is suggests that comparing and analyzing successful reproduction rates between groups statistically which means how many individuals of the population left behind due to not inheriting traits require for survival.
Thus, the correct answer is - option A. differential reproductive success based on inherited traits
Due to genetic changes and the environmental conditions when the organism adapts itself to the current situation for survival is called natural selection.
Natural selection means that the organism that survived over another have better traits and characteristics for adaptation.
The correct answer is:
Option A. differential reproductive success based on inherited traits.
This can be explained as:
A particular type of trait carried by an organism that is better for adapting to survival than the other organism carrying less favorable trait will have a better chance of survival and their reproductive success will be much higher.Based on the inherited characteristics the natural selection will be based on reproductive success.Differential reproductive success is an analysis in which comparison is done among the organism that survived and those that did not.Comparing their traits and characters can give an idea about the factor affecting the selection.Therefore, differential reproductive success based on inherited traits best expresses natural selection.
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Roses come in many different colors. What is the difference between a rose that is
red and a rose that is yellow?
Answer:
different allele
Explanation:
Newborn infants were given either smooth or knobby pacifiers to suck. They were later allowed to look at both types of pacifiers. They looked longer at the type of pacifier they had previously sucked. This finding indicates that newborn infants have ______________.
Answer:
intermodal perception 10000% SURE
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I heard that mitochondria increase if we exercising. So, if i was exercising and suddenly stop exercising. Will the number of mitochondria same, and more food neededbfor energy and more energy not use and more fats produce?
Will i produce more fats when i stop exercising than when i never do exercise?
Please answer with the explanation
Answer:
I believe the amount of mitochondria in our body only increases after long term exercising.
When you are exercising, you do not produce more mitochondria straight away. Even after you stop, the amount of mitochondria will be the same.
I believe the production of mitochondria and the improvement of your muscles is the same. You need to exercise for awhile before you can get more mitochondria in your body.
As for your amount of food needed, it is not according to the amount of mitochondria you have. It is according to how much energy you need.
You should be able to tell how much food you need. So, you actually wont produce more fats. As long as you eat the correct and moderate amount of food.
You will not produce more fat when you stop exercising than when you never exercise. Like I said, the amount of fat produced is according to your food intake. Your food intake is according to your energy needs. As long as you eat moderately, you will not produce more fat. In fact, you will be able to burn fats better after long term exercise because your body will be healthier and able to moderate itself.
abstract excretion in animals
Given that,
Abstract excretion in animal,
Excretion in animal :
Excretion in animal is defined as the elimination of metabolic,or nitrogenous waste products from the body of an organism.
Type of excretion are,
(I). Ammonotelism
In this type of excretion the excretory product is ammonia.
(II). Ureotelism
In this type of excretion the excretory product is urea.
(III). Uricotelism
In this type of excretion the excretory product is uric acid.
(IV). Aminotelism
In this type of excretion the excretory product is amino acid.
(V). Guanotelism
In this type of excretion the excretory product is guanine.
One of the main differences between a somatic reflex and autonomic reflex is the type of effectors that are activated. The effectors in somatic reflexes are _____, while the effectors in autonomic reflexes are _____.
The effectors in somatic reflexes are striated muscles(skeletal muscle)
The effectors in autonomic reflexes are smooth muscles or glands
Which of the following is an organism whose cells each contain a membrane-bound nucleus?
A. A eukaryote.
B. A prokaryote.
C. An animal.
D. A plant.
Answer:
A. A eukaryote cell
Explanation:
because eukaryotic cell is a cell which have a membrane - bounded nucleus
In an organism, X, it is found to be impossible to generate loss-of-function mutants for most genes. There is an alternative method of introducing random mutations that can later be screened for the gene(s) in question. This can be accomplished by using insertions due to what genetic entities?
Answer:
Transposable elements (TE)
Explanation:
A transposon, also known as 'jumping genes', is a particular sequence of DNA that can relocate inside of the genome. It affects the genetic identity and can be made use of to either reverse a mutation or create one - it duplicates that genetic sequence. Retrotransposons is a class of TE found in viruses.
What process creates mRNA?
Answer:
DNA transcription creates mRNA. Transcription is when information in a strand of DNA is replicated or copied into a new strand of mRNA. The DNA sequence serves as a template for mRNA to be synthesized in the nucleus. mRNA is catalyzed by the enzyme RNA polymerase and requires nucleotide triphosphates as substrates in order to initiate and sustain DNA synthesis.
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Please help me with the attachment below
Answer:
2. The lime water turns milky in colour
3. To act as filters
4. To enable easy penetration of the root of planted crops.
See detailed explanation below
Explanation:
2. Our exhaled air principally contains carbon dioxide gas (CO2), which reacts with like water to produce a milky solution. The lime water is a solution of Calcium hydroxide (CaOH2), which chemically reacts with the C02 content of our exhaled air to form a compound called Calcium carbonate (CaCO3). Calcium carbonate is a whitish compound that appears chalky/milky.
3. Our nostrils contain a cavity called nasal cavity, which is lined with mucus (a viscous substance). The mucus helps to keep the nasal cavity wet. The hair in the nostrils also help prevent large particles in inhaled air from entering into the nasal cavity. The hair and mucus works together to filter out shirts and germs like bacteria etc from entering into the lungs.
4. Farmers loosen the soil which they plant their crops by mixing the layers of the soil. Loosening the soil encourages or promotes a deep and easier penetration of the plant roots. It also helps the soil to be properly drained and aerated i.e. penetration of water and air into the soil respectively.
Which human activity can produce disruption of fish breeding habits, increase in mosquito population, and flood control? construction of dams to produce electricity habitat destruction that decreases beaver population increased erosion due to improper farming techniques overfishing in artificial lakes
Answer:
A
Explanation:
edge
The construction of dams to produce electricity is a human activity that can produce disruption of fish breeding habits.
Human activities which have the potential of affecting the ecosystem are called anthropogenic activities. These activities could have a lasting impact on the ecosystem such as disruption of fish breeding habits.
Dams are structures built in water for the purpose of irrigation or electricity generation. The construction of dams to produce electricity is a human activity that can produce disruption of fish breeding habits, increase in mosquito population, and flood control.
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A Histoplasmosis (caused by the fungal pathogen Histoplasma capsulatum) is typically seen only in the Ohio and Mississippi river valleys, whereas Aspergillosis (caused by the fungal pathogen Aspergillus fumigatus) is widespread regardless of geographical location. Which of the following statements describes why this disparity with regards to disease distribution occurs?
1. Histoplasma capsulatum is an endemic fungus that prefers sols erwiched with bal guano, whereas Aspergillus furgatus is a ubiquitous soll langus.
2. Individuals are not as routinely vaccinated against Aspergillosis as compared to Histoplasmosis
3. Histoplasma capsulatum is an opportunistic fungal pathogen affecting immunocompromised individuals, whereas Aspergillus fumigatus is a true fungal pathogen affecting both healthy and immunocompromised individuals.
4. The arthropod vector that carries Histoplasma capsulatum is only found in the Ohio and Mississippi valley regions, whereas the arthropod vector that carries Aspergillus fumigatus is found in many geographical locations.
Answer:
3. Histoplasma capsulatum is an opportunistic fungal pathogen that affects immunocompromised individuals, while Aspergillus fumigatus is a true fungal pathogen that affects both healthy and immunocompromised individuals.
Explanation:
Histoplasmosis is an oprtounista mycosis, that is to say that it increases in number in our organism occasionally generating infectious and non-protective pathology like the commensal flora.
Histoplasmosis respects American geographic limits and is because it lives in tropical and freshwater climates.
Histoplasmosis pathology is triggered if the person has a deficit in the immune response and if the risk of living or transiting the endemic area is corrected.
On the other hand, the aspergillus fungus is a fungus that enters the inhalation routes in a sporulated form and developed in the lungs, generating a high fatal risk, since it triggers inflammatory and necrotic symptoms in the lung, regardless of whether the person is immunodeficient or not. ... There were people who were shaved by this fungus and even selected hypersensitivity pictures, that is, the opposite of an immunodeficiency.
The Fungi of the Aspirgillus group do not discriminate against age, immune status, or other factors ... only inhalation of the spore is required to develop the pathological picture.
The questions are on the image
Answer:
9 no. ans = 1. plastids.
2. cell wall.
10 no. ans
i)= nerve cell helps the body to receive impulse from affected part brain and response from brain to affected part.
ii)= palisade helps plants to carry out photosynthesis efficiently.
iii)= root hair cell helps in absorption of minerals ion and water from root to other parts of plant.
iv) = red blood cell helps in transporting oxygen to different parts of body.
11 no. ans
12 no.ans
i) = the group of cells having similar function and structures is called tissue.
ii)= organs are the group of various tissue working together to perform a particular task .
iii)= thecollection of organ which works or function independently is called organ system.
hope it helps..
Answer:
9. There are chloroplasts in a plant cell but not in animal cells. (plants need chloroplast for photosynthesis)
There is a cell wall around a plant cell (that gives it a fixed shape) but animal cells don't have any cell walls.
10. i- Nerve cells transmit and process information.
ii- palisade cells allow photosynthesis to take place. They contain numerous chloroplasts which help in absorbing light energy.
iii- The role of root hair cell is to absorb mineral salts and water from the soil.
iv- red blood cells help transport oxygen across the body.
11. divide the number of cells by the diameter of field view.
10 cells/3.5 mm = 2.86 mm/cell
12. i-a tissue is a group of similar cells (which work together to perform a certain function)
ii- An organ is made of a few types of tissues that work together to perform a specific function. (e.g the stomach)
iii- several organs working together for a common purpose makes an organ system. (e.g the respiratory system or the digestive system)
The ____________ ramus is the smaller of the two main branches. It innervates the ____________ and the skin of the back. The ____________ ramus is the larger of the two main branches. This splits into multiple other branches, which innervate the ____________ , the upper limbs, and the lower limbs. Many of the anterior rami go on to form ____________ .
Answer:
The posterior ramus is the smaller of the two main branches and innervates the deep muscles of the back and the skin of the back. The anterior ramus is the larger of the two main branches and innervates the anterior and lateral portions of the trunk and the upper and lower limbs.
Explanation:
The posterior ramus is the smaller of the two main branches and innervates the deep muscles of the back and the skin of the back. The anterior ramus is the larger of the two main branches and innervates the anterior and lateral portions of the trunk and the upper and lower limbs.
What is the brachial plexus?It is responsible for providing the motor (muscle), sensory and sympathetic innervation of the upper limb. Through it, the spinal cord is connected with all the peripheral nerves of the upper limbs and all the sensorimotor information of these segments is also transmitted.
We can conclude that the brachial plexus is a nerve network located at the base of the neck and the axillary fossa associated with sensory and motor innervation for the entire upper limb.
Therefore, The posterior ramus is the smaller of the two main branches and innervates the deep muscles of the back and the skin of the back. The anterior ramus is the larger of the two main branches and innervates the anterior and lateral portions of the trunk and the upper and lower limbs.
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