Answer:
carbohydrates
Explanation:
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Describe digestion in the small intestine and large intestine
What are villi and microvilli? What are their funcrions
Answer:
Villi and microvilli are both membranous structures that help facilitate the exchange of materials out and in the cell.
Explanation:
Since they are threadlike projections it increases the surface area while decreasing the volume (that's really good for any cell!). So they both indeed make the exchange of fluids and other materials easier.
Researchers collected data about the heart rates of
humans aged 5 to 90 years. They represented the data in a
graph.
Which statement is the best explanation of the pattern in the data?
A. The data show that increasing age causes an increase in heart
rate
8. The data show neither correlation nor cause between age and heart rate
C. The data show a correlation between age and l
D. The data show cause but not correlation between age and heart
rate
The statement 'the data show a correlation between age and heart rate' is the best explanation of the pattern in the data (Option C).
What are causation and correlation?Causation means that a given outcome (i.e, the independent variable, in this case age) may lead to a modification the dependent variable (in this case the hearth rate), whereas correlation indicated a relationship between variables.
In conclusion, the statement 'the data show a correlation between age and heart rate' is the best explanation of the pattern in the data (Option C).
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Which of the following is NOT an example of homeostasis?
a
During rigorous exercise the heart rate increases to deliver more blood to the cells.
b
As humans age, they become more susceptible to disease and cancer.
c
When blood glucose is high, the hormone insulin reduces blood glucose.
d
When body temperature rises, nerve impulses cause sweat glands to release more sweat.
Answer:
d
Explanation:
When body temperature rises, nerve impulses cause sweat glands to release more sweat
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What is the half set of chromosomes in gametes?
A. Zygote
B. Fertilization
C. Diploid
D. Haploid
Answer:
Diploid
Explanation:
Gametes contain half the chromosomes contained in normal diploid cells of the body, which are also known as somatic cells. Haploid gametes are produced during meiosis, which is a type of cell division that reduces the number of chromosomes in a parent diploid cell by half!
Answer:
diploid
Explanation:
I think, it's been a few years since I took biology but I hope it's right
If a DNA molecule is 10% Adenine (A), what percent of the DNA molecule
is made up of Cytosine (C)? (Hint: remember the base pairing rules)
related set of
If a DNA molecule is 10% Adenine (A), 40% of the DNA molecule
is made up of Cytosine (C)
The DNA composition ratio can be calculated by Chargaff's rule which states that, Guanine and cytosine should both be present in equal amounts in the DNA of every species and organism, while adenine and thymine should both be present in equal amounts. Additionally, there should be a 1:1 stoichiometric ratio between the purine and pyrimidine bases (A+G=T+C).
As per the Question,
If, A=10 then T=10 because A always pair with T. If T=10, then G=40, and then C=40. The total sum is equal to 100 or A + G (10 + 40) = T + C (10 + 40). Which ratio is equal to 1:1.
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Which statements accurately describe animals? Check all that apply.
-All animals are prokaryotes.
-All animals are multicellular.
-All animal have cells that contain a nucleus and organelles.
-All animals are capable of asexual reproduction
-All animals must maintain stable internal conditions.
-All animals stay in one place throughout their lifetime.
-All animals make their own food.
All animals are multicellular.
All animal have cells that contain a nucleus and organelles. These two are the correct statements.
Animals have a huge variety of characteristics that set them apart from species in other kingdoms, despite the fact that they all belong to the animal kingdom. The vast majority of animals have specialized tissues, and all animals are eukaryotic, multicellular organisms. The majority of animals are mobile, at least at some points in their lives. Animals need nourishment in order to thrive and grow. Every animal is heterotrophic, meaning they consume both live and dead organic stuff. They differ from autotrophic creatures like most plants, which produce their own nutrition through photosynthesis, and from fungi, which externally digest their food, in that they receive energy in this manner. Animals can be parasitic, herbivorous, carnivorous, or omnivorous.Most animals reproduce sexually, and unlike plants, the young go through a sequence of developmental stages that shape their body plans.Therefore, all animals are multicellular and have cell organelles.
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Students set out five bird feeders, each of a different color:
red, blue, green, yellow, or brown.
Assuming that birds have no color preference, what is the theoretical
probability that a visiting bird will go to the blue feeder?
A. 1.0
B. 0.2
C. 0.4
D. 0.5
Assuming that birds have no color preference, the Probability that a visiting bird will go to the blue feeder is 0.2 (20%)
B. 0.2How is probability calculated?The probability is calculated using a simple division. Just divide the number of events by the number of possible outcomes, as seen in the formula
p = n(e)/n( Ω ).With this information, we can conclude that To determine the probability that z is between two given values, determine the cumulative areas for each value, then subtract the smaller from the larger. To determine the probability that z is less than a given value, find the corresponding accumulated area.
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Why can two people draw different phylogenic trees using the same data and still both be correct?
The most common misinterpretation that does not change the result is related to taxa relatedness is to use the distance between taxa in phylogenetic trees to determine relatedness, i.e., the proximity of branch tips, often referred to as “tip reading”. Branches can be rotated around nodes, however, so that the positions of taxa are arbitrary.
What is phylogenetic tree?A phylogenetic tree, also known as a phylogeny, is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.
What is the advantage of a phylogenetic tree?It helps us to understand how species are related to each other. The evolution of animal species has been prolific (the estimates go into the millions and tens of millions).
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2. Mammary glands are shared characteristic among mammals and the oldest common ancestor of mammals. This is an example of a
O A. cladogram.
O B. synapomorphy.
O c. taxonomy.
O D. phylogeny.
Answer: B
Explanation:
In your own words, define the term science.
Answer:
agriculture, environmental, body, and nature
9.) What is an emergent property?
Answer:
here
Explanation:
properties that become apparent and result from various interacting components within a system but are properties that do not belong to the individual components themselves.
Someone picks up a card that has 2 carbohydrate molecules that are bonded on it and asks "excuse me, but I think you dropped your name tag?
what is the joke here?
Explanation:
YAA! its a joke I laughed like Hell!
I don't understand what's the Joke in this..
If I feed unlimited pizza to my siblings, then they will get a stomachache.
independent variable is ? dependent variable is ?
Answer:
Dependent Variable- Whether or not they get a stomachache
Independent Variable- The amount of pizza you feed them
Explanation:
Dependent Variable- The variable you observe
Independent Variable- The variable you change
I hope this helped, have a great day!
Answer: D.V- If they get a stomachache or not, I.V- How much pizza they ate
Explanation:
Consider the results of Ostfeld et al. 2018 paper. What type of forest is most likely to have a high
predators?
A site in a mostly maple forest.
B site surrounded by less than 1 kilometer of forest.
C site surrounded by at least 1 kilometer of forest.
D site in a mostly oak forest.
According to the result of Ostfeld et al., the type of forest that is most likely to have high predators is the site surrounded by at least 1 kilometer of the forest. Thus, the correct option for this question is C.
What do you mean by Predators?Predators may be defined as the type of animals/organisms that primarily obtains food by killing and hunting other organisms and finally consuming them. In a more simple sense, predators may be characterized as an animal that naturally preys on others.
The results of Ostfeld et al. 2018 paper, the area that is surrounded by at least 1 kilometer of the forest is known as the zone of predators, where a high number of predators are found. This is because in this region predators got an extremely good amount of food with less expenditure of energy.
Therefore, the correct option for this question is C.
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And you choose this answer?
Explain how water cycles globally
Explanation:
Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Water in different phases moves through the atmosphere (transportation).
Which of the answers is correct about atoms?
Answer:
A. at the center of the atoms are the electrons
Explanation:
An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud.
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How would you know when homeostasis has been reached in your egg and syrup system?
The egg and syrup system
because the egg membrane is semi-permeable, water can flow in however proteins can not flow out. If a egg is positioned in the corn syrup the egg will shrink. this is also because of osmosis, but inside the opposite direction. The corn syrup is more often than not sugar.
What takes place whilst you go away an egg in water for twenty-four hours?
depart the egg within the water for 24 hours. The water will migrate from the side of the membrane wherein water molecules are abundant (outside the egg) o the side where water molecules are less considerable. After 24 hours, the egg will be plump once more.
What takes place whilst you positioned an egg in vinegar then corn syrup?
as the vinegar reacts with the eggshell, bubbles surround the egg, inflicting it to waft. while the egg is placed in the salt water, it sinks to the lowest of the beaker again, considering the fact that it's miles greater dense than the salt water solution. The egg floats inside the corn syrup due to the fact the corn syrup is extra dense than the egg.
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Write a paper that outline the adaptations of carnivorous plants ( see pp.91-92 of evolutionary analysis). Use Gibson and waller 2009) to summarize specifically how “ snap-trap” may have evolved from “flypaper” trap by natural selection .adderess the pertinent principles of natural selection found in chapter 3 of envolutionary Analysis .A link to this paper is found on the blackboard site for this couse
Answer:
1 adaptation of carnivorous plant is this
Trapping Their Prey
Common trapping techniques are pitfall traps, flypaper traps, snapping traps, and suction traps. The first two use adaptations that involve shape and sticky surfaces. The last two are particularly fascinating, because the presence of prey triggers the plant to take action — to move, quickly!
What type of transport occurs when a large cell contains a smaller cell such as a bacteria
A large cell contains a smaller cell like bacteria due to phagocytosis.
Bacteria are the microorganisms that are the most primitive on earth. These are omnipresent. Bacteria can be both harmful as well as useful. The bad bacteria cause several diseases whereas the good bacteria help in digestion, nitrogen fixation, curdling of milk, etc.
Phagocytosis is a type of endocytosis. It is also called cell-eating. In phagocytosis, cell engulfs solid large bacteria completely. This is done by forming extensions of the plasma membrane called pseudopodia. These pseudopodia then fuse and pinch off to form endocytic vesicles. Organisms like amoeba perform phagocytosis, and human immune cells too.
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The type of cartilage found at end of bones articulating to form joints is
Answer:
That would be Hyaline cartilage. A smooth type of cartilage that helps bones move or glide over one another.
Answer:Bone marrow
Explanation: it is what keeps the bones strong and together
How is it possible for a woman to produce several eggs at one time
Answer:
women cannot produce eggs
Explanation:
they produce baby
A fat (or triacylglycerol) would be formed as a result of a dehydration reaction between__.
O one molecule of 9 and three molecules of 10
O three molecules of 9 and one molecule of 10
O one molecule of 5 and three molecules of 9
O one molecule of 5 and three molecules of 10
A fat (or triacylglycerol) would be formed as a result of a dehydration reaction between three molecules of 9 and one molecule of 10.
three molecules of 9 and one molecule of 10How are triglycerides formed by dehydration synthesis?The dehydration synthesis of triglyceride is a condensation reaction in which one molecule of glycerol reacts with three fatty acids to form a triglyceride. Glycerol has three hydroxyl groups and fatty acids have carboxylic groups so they condense together with the loss of three water molecules and form an ester bond.
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What do buffers do and why are they important in biological systems
Explanation:
A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution relatively stable. This is important for processes and/or reactions which require specific and stable pH ranges. Buffer solutions have a working pH range and capacity which dictate how much acid/base can be neutralized before pH changes, and the amount by which it will change.
Choose the right answers
Answer:
1st, 2nd and Last option
Explanation:
The number of protons is equal to its atomic number. Neutral atom means that the charge in the atom is 0. In order to make the charge 0, the proton and electron charges have to be additive inverses, meaning the sum of the proton and electron charges have to be 0. Each proton has a +1 charge while each electron has a -1 charge. Hence, the number of protons and electrons have to be equal.
Two chemicals were placed in a container and a chemical reaction occured. The container became hot at the end of the reaction.
what kind of chemical reaction had happened ?
Answer:exothermic
Explanation:
the reaction gave off heat which means energy was leaving we leave through exits so it was exothermic
Water can enter the skin cells of a dead body placed in water, due to passive transport.
True
False
The statement indicating that water can enter the skin cells of a dead body placed in water, due to passive transport is TRUE.
What is passive transport?Passive transport refers to the movement of substances in favor of a concentration gradient through a membrane, and osmosis is a type of passive transport by which water (H2O) molecules move through a membrane in favor of this gradient.
In conclusion, the statement indicating that water can enter the skin cells of a dead body placed in water, due to passive transport is TRUE.
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Which of the following is a reliable way to observe that a chemical change has occurred when two substances come in contact with one another?
The ways to observe that a chemical change has occurred when two substances come in contact with one another are as follows:
Color Change.Production of an odor.Change of Temperature.Evolution of a gas (formation of bubbles)Precipitate (formation of a solid)What is a chemical change?A chemical change is a any process in which reactants are changed into products by the breaking or creation of chemical bonds.
A chemical change is opposed to a physical change in the sense that a physical change affects only the form of a chemical substance, but not its chemical composition.
The ways to observe if a chemical change has occured are as follows:
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Answer:
(Question) Which of the following is an example of only a physical change?
(Answer) dry ice becoming vapor
(Question) Which of the following demonstrates a chemical change?
(Answer) iron (Fe) reacting to water((H2O)) and oxygen(O) to form iron oxide(Fe2O3)
(Question) Which of the following is a reliable way to observe that a chemical change has occurred when two substances come in contact with one another?
(Answer) conduct a test to determine the chemical makeup of the molecules
(Question) Which of the following happens during a chemical change but does not happen during a physical change?
(Answer) Atoms of one or more substances rearrange into a new substance.
(Question) Which of the following example demonstrates the reversibility of a chemical change?
(Answer) recharging batteries
Explanation:
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1) What is the difference between spectroscopy and spectrometry?
2) Why is it necessary to use a narrow wavelength spectrum of light in spectrometry? Why do we use wavelengths of peak absorbance for a particular analyte?
3) What volume of a 100 ppm (part per million) stock solution would be used to create 30 mL of a 10 ppm standard?
Spectroscopy refers to the interaction of matter with energy.
What is spectroscopy?The term spectroscopy refers to the interaction of matter with energy. It shows the manner in which matter is able to interact with energy. Spectrometry is the application of spectroscopy.
It is important to use a narrow wavelength during spectroscopy because different wavelengths can be used to identify the various kinds of compounds in the sample.
The dilution formula could be used to obtain the new concertation of the solution after dilution. An aliquot of the stock solution is added to a measured volume of water and made up to the required mark for dilution.
Using the dilution formula;
C1V1 = C2V2
C1 = 100 ppm
V1 = ?
C2 = 10 ppm
V2 = 30 mL
V1 = C2V2/C1
= 10 ppm * 30 mL /100 ppm
V1 = 3 mL
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science is based on facts not options.
-an ______ is a statement that expresses feelings or beliefs.
-facts on the other hand ,are statements that can be proved true. supported with _____
fill in the blanks.
Answer:1 is opinion
2is evidence.
Explanation:
Answer:
the first one is "opinion"
the second one is "facts"