Answer:
superposition
Explanation:
Dating consists of ordering geological events according to the time they occurred, which ones occurred first, and which ones occurred latterly. This dating can be done by using the superposition geological principle.
Sediments can be incrusted in horizontal layers in the ground, called stratum. Different stratum can give us information about the environment in the past. They keep information about the age and the conditions under which the sediments got deposited.
Some geological principles allow us to date, relatively, the age of different geological events in the past.
Sediment layers place in a temporal sequence, let us know that the older layers are located in an inferior position concerning the newer layers. Hence, fossil species placed in more inferior layers are supposed to be older than fossil species found in more superficial layers.
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)
"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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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.
Hope that helps.
Why are antibiotics unhelpful for treating the common cold?
O A. Antibiotics cannot treat illnesses.
O B. Viruses are not killed by antibiotics.
O
C. Colds are caused by antibiotics.
O D. Colds are caused by bacteria.
Answer:C as colds are caused by rhino virus....
Explanation:
Hope it helps u.....
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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Will try to give brainliest PLEASE HELP ASAP
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
In rheumatoid arthritis Group of answer choices articular cartilage is damaged and fibrous tissue invades. fibrous tissues ossify and bones fuse. the synovial membrane becomes inflamed and thickens, forming a mass. all of the above.
Answer:
The correct answer is - all of the above.
Explanation:
Rheumatoid arthritis (RA) causes aggravation of the linning of the joints, particularly in the hands, knee, and fingers. Signs and side effects incorporate red, swollen, excruciating joints, and diminished flexibility and mobility. Articular cartilage is damaged and fibrous tissue invades
If left untreated, it can make extreme harm to the joints and serious complexities in the significant organs. In it, fibrous tissues ossify and bones fuse Rheumatoid joint inflammation is an immune system illness and osteoarthritis is brought about by impacts of maturing. The synovial membrane becomes inflamed and thickens, forming a mass.
The correct answer is - all of the above.
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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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.
Hope that helps.
Valves in veins are formed of the tunica media. cause venous blood flow to go in only one direction. are found only in the largest veins. make the use of a skeletal muscle pump unnecessary for venous blood flow. are the leading cause of high blood pressure.
Answer:
they get larger.
Explanation:
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.
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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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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.
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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Help pls. ive been stuck on this for a long time
Answer
Tundra: lichens and moose
Taiga: cone-bearing evergreens and timberwolves
Deciduous Forests: broad leafed trees and ptarmigans
Grasslands: grasses and hyenas
Rainforests: air plants and parrots
Desert: succulent plants and dingo dogs
hope it helps
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
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
hope i helped
-lvr
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.
In a flock of sheep there are animals with brown fleece and brown eyes and others with white fleece and blue eyes. There are no animals with white fleece and brown eyes or with brown fleece and blue eyes. What can you conclude about the genes for fleece color and eye color
Answer:
In general, children inherit their eye color from their parents, a combination of the eye colors of Mom and Dad. A baby's eye color is determined by the parents' eye color and whether the parents' genes are dominant genes or recessive genes.
A lamb inherits 2 genes for color, one from each parent. This color gene causes the pigment named eumelanin to be produced in the cells of the wool follicles. This pigment produces the basic black or brown color of the Icelandic sheep.
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
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 statement about glycolysis is false? ATP is required. Three of the 10 steps of glycolysis yield energy. Glycolysis leads to the formation of pyruvate. Oxygen is required. Glycolysis occurs outside of the mitochondria.
Answer:
The answer is oxygen is required
Venn diagrams are used for comparing and contrasting different topics. The overlapping sections show characteristics that the topics have in common, and the sections that are unique to each topic show the characteristics apply to only that topic. Overlapping circles are labeled solid on top, liquid at right, gas at left, with the intersection of all three labeled state of matter. Which Venn diagram accurately describes what characteristics of solids, liquids, and gasses could be added to this diagram? Overlapping circles are labeled definite shape most dense at top, mid-level density at right, definite volume least dense at left, with the intersection labeled state of matter.
Image is not attached in the question, so the required image is attached below.
Answer:
Third image
Explanation:
The third image shows the correct venn diagram for of solids, liquids, and gasses.
In the diagram, gases have the least dense of the three main states of matter.
Solids and liquids have definite volumes which is common in both the states.
Liquids have characteristic of mid-level density and solid are most dense. Solids have definite shape while other two states do not have.
The second Venn diagram correctly represents the characteristics of solid , liquid and gas.
Solids are the most dense of all phases of matter with a definite volume and shape while.
Liquids are less dense with definite volume but without definite shape. and.
Gases have no definite shape and no definite volume and it is the least dense of all phases of matter.
Venn diagram is a pictorial form of representing data for better understanding
Hence we can conclude that the second Venn diagram correctly represents the characteristics of solid , liquid and gas
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.
I’m clueless, help me please thank you
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 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:
...
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
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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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!