Describe how people change their body shapes (not their clothes) when they are very hot and when they are very cold. Use your knowledge of surface area : volume ratios to explain why we do this.

Answers

Answer 1

Answer:

This quesiton is unclear

Explanation:

The body has negtive feedback loops that either vasoconstrict (preserving heat by lessening the surface area of blood vessels so they are exposed to less cold and release less heat) and vasodilation, where blood vessels are expanded and have higher surface areas so the body hopes to lose more heat to cool down.

If this is purely body language (like going into a fetal position when its cold: to lessen the surface area exposed to the cold temperature and lose less heat, imagine an ice cube vs. a long thin tube of ice with equal volume, the cube will last longer. Similarly our bodies would spread out to release more heat (unless there was sun) this is to expose the most surface area, allowing our body to release the most heat. Note: this is pretty insignificant change, and in extreme temperatures will likely not help, but it does contribute.

Answer 2
When the cell increases in size, the volume increases faster than the surface area, because volume is cubed where surface area is squared. When there is more volume and less surface area, diffusion takes longer and is less effective.

Related Questions

true or false? Body parts that share a common function but not common structure are called analogous structures.

Answers

The answer to this question is True

Brainliest
The greatest biodiversity of species of living organisms is found in a
Desert
Rain Forest
Estuary
Taiga

Answers

Answer:

B) Rain forest

Explanation:

Cartilage is part of the _______ system, which is related to the respiratory system, as we find cartilage in the _______ of the respiratory system.

Answers

Answer:

The first one is the Skeletal System I believe. My best guesss for that second one is the nose, because we inhale though it.

6. After a person eats a large meal, glucose begins to move into the bloodstream and the
level of insulin released by the pancreas
a. Increases
b. Decreases
c. Stays the same
d. Is equal to the levels of glucagon

Answers

The answer is A it increases

Yoooooooooo neeeeeeeeed help on this

Answers

Answer: II-4 is III-2’s aunt

what niche do you think you have in your family?​

Answers

Answer:

My brother is extremely artistic and can draw and animate really well. hes the arts while im the brains. Is that a niche lol?

There are four main types of macromolecules that are synthesized and used in the metabolic processes of living cells. Name the type of molecules that are built from amino acids in the ribosomes of eukaryotic cells.
A. carbohydrates

B. lipids

C. proteins

D. nucleic acids

Answers

Proteins because amino acids make them

Answer:

C I'm pretty sure

Explanation:

Help ASAP plsssss :))

Answers

Answer:

I would say maybe B and C but im not a 100%

Explanation:

Explain why the backbone of large macromolecules is made of carbon atoms rather than hydrogen atoms

Answers

is there a picture ???

What are the four types of receptors? What kind of stimulus does each one respond to?

Answers

Explanation:

Broadly, sensory receptors respond to one of four primary stimuli:

• Chemicals (chemoreceptors)

• Temperature (thermoreceptors)

• Pressure (mechanoreceptors)

• Light (photoreceptors)

What will happen if natural predators are removed from a habitat?

1. the prey will decrease
2. the prey will increase

Answers

The prey will decrease

Answer:

The prey will increase in population.

Explanation:

Don't listen to the other person, I used their answer on my quiz and it got marked as wrong.

SpongeBob loves growing flowers for his pal Sandy! Her favorite flowers, Poofkins, are found in red, blue, and purple. Use the information provided and your knowledge of incomplete dominance to complete each section below.



1. Write the correct genotype for each color if R represents a red gene and B represents a blue gene.

Answers

Answer:

Red=RR

Blue=BB

Purple=RB

Where a disturbance did not completely wipe out all life and nutrients from the environment, secondary succession occurs and homozygous.

Thus, Despite the fact that fire, flooding, and other disturbances can leave a landscape in ruins, drive many animals and plants away, and bring the biological community back to an earlier stage, the habitat is still alive because the soil still contains nutrients and seeds that were sown before the disturbance.

The homozygous genotypes' two alleles are not expressed over one another in incomplete dominance; instead, an intermediate heterozygote is created.

A significant contributing factor to the variety in the traits or properties of an organism is incomplete dominance.

Thus, Where a disturbance did not completely wipe out all life and nutrients from the environment, secondary succession occurs and homozygous.

Learn more about Secondary succession, refer to the link:

https://brainly.com/question/30229009

#SPJ2

Help Please!!
1- How could you tell whether a given sequence was DNA or mRNA?
2- Was it easier to decode messages written in DNA or in mRNA sequences?
3- Which cellular enzymes or machines are you imitating when you "transcribe" DNA into mRNA?
4- Which cellular enzymes or machines are you imitating when you "translate" mRNA into a chain of amino acids?
5- What else needs to happen in a eukaryotic cell between the processes of transcription and translation?
6- In step 5, how did different mutations affect the amino acid sequence that was encoded?
7- Explain why some single nucleotide mutations affect an amino acid sequence and some single nucleotide mutations do not.
8- Explain why nucleotide insertions and deletions affect the amino acid sequence so profoundly.
9- Why could your secret message include only 20 of the 26 letters of the alphabet?
10- Did you find that it was difficult to work with only these letters?

Answers

1. uracil (U) is dna and thymine T is mRNA
2 is an opinion
3 i think polymerases in rna

Answer:

DNA sequences use the nucleotides A, T, G, and C, while mRNA sequences use the nucleotides A, U, G, and C.

It was easier to decode the messages written in mRNA sequences because these sequences could be translated directly into the amino acid sequence.

The cellular enzyme that carries out transcription is RNA polymerase.

The cellular machine that carries out translation is the ribosome, which is composed of both rRNA and ribosomal proteins.

In a eukaryotic cell, an mRNA transcript often has additional untranslated regions and a poly-A tail. A eukaryotic mRNA transcript would need to be transported from the nucleus to the cytoplasm before it could be translated.

Some amino acids are encoded by several codons. If a single nucleotide mutation still encodes for the same amino acid, the resulting amino acid sequence would not be affected. This happens most often with nucleotides in the third position of a codon.

If a single nucleotide mutation changes the amino acid encoded, the resulting amino acid sequence would be affected. This happens most often with nucleotides in the first and second positions of a codon.

Nucleotide insertions and deletions cause frameshift mutations, which change the reading frame of translation and will encode completely different amino acids from that point forward.

There are only 20 canonical amino acids, so the letters B, J, O, U, X, and Z are not used as one-letter codes.

It was a little difficult to not use the letters B, J, O, U, X, and Z at first, but there are messages to write without these six letters.

Explanation:

What is the best known corticosteroids?

Answers

Answer: fludrocortisone

Answer:

Cortizone-10

Explanation:

Is there a difference between radial and spherical symmetry? If so, what is the difference?

Answers

Yes, There is no spherical symmetry in biology. But is in Spherical

Behavior can best be defined as

Answers

Answer:

Behavior is best defined as anything a person says, does, or feels.

Ok y’all give me ur opinion on Light Yagami I’m interested to see this since everyone thinks differently LOL

Answers

Answer:

i dont know where to start honestly like in some parts i can see where he is coming from but why? you know?

Explanation:

What is climate change​

Answers

Answer:

Climate change includes both global warming driven by human-induced emissions of greenhouse gases and the resulting large-scale shifts in weather patterns

hope this helps

have  a good day :)

Explanation:

Answer:

Climate change is a change in the usual weather found in a place.

Extra:

a change in regional climate patterns, attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.

The proper name for the wide flat part of a feather is

Answers

I believe it’s called vane

The Cordon is the trunk of the grape plant

True
False

Answers

Answer:

The Cordon is the arms of the plant

Explanation:

Hope this helped Please mark brainylest.

Cell organelles that are responsible for digesting food, worn out organelles and other
cellular wastes are called?


Answers

Lysosomes,

Lysosomes are organelles found in some eukaryotic cells (mostly animal cells) that are responsible for degrading (breaking down) the cell's waste products.

Species
Sequence of Amino
Acids in the Same Part
of the Hemoglobin
Molecules
Human
Horse
Gorilla
Chimpanzee
Zebra
Lys-Glu-His-Iso
Arg-Lys-His-Lys
Lys-Glu–His-Lys
Lys-Glu-His-Iso
Arg-Lys-His-Arg
O A Horse and Zebra are the least related.
O B. Human and Chimpanzee are the least related
O
C. Human and Zebra are more closely related than Human and Chimpanzee
D. Human and Chimpanzee are more related than any other pair

Answers

Answer:

D. Human and Chimpanzee are more related than any other pair

Explanation:

The image in this question shows a tabularized information on the amino acid sequence of hemoglobin protein in different species. This amino acid sequence can be used to deduce whether two or more species are closely related or not. The amino acid sequence of the hemoglobin of the different organisms are as follows:

- Human: Lys-Glu-His-Iso

- Horse: Arg-Lys-His-Lys

- Gorilla: Lys-Glu–His-Lys

- Chimpanzee: Lys-Glu-His-Iso

- Zebra: Arg-Lys-His-Arg

Based on the above sequences, it can be observed that the amino acid sequence of humans and chimpanzee are the same with little to no differences while other species that have similar sequences differ in one or two amino acids. This means that Human and Chimpanzee are more related than any other pair.

Is it C? Be honest don’t agree cause I think it’s one thing

Answers

answer:

c) if, then statement **you chose the correct answer**

explanation:

the hypothesis is an educated guess as to what will happen during your experiment. the hypothesis is often written using the words if and then. for example, "if i don't study, then i will fail the test." and since c) is the only answer choice that matches this description, c is the correct answer

good luck :)

i hope this helps

brainliest would be highly appreciated

have a nice day!

____________ is the study of the interactions among all organisms and their physical environment. A ____________ is the place where an organism lives. A ____________ is all the individuals of the same species found in the same location. A ____________ consists of all of the various populations interacting at a locale. An ecosystem contains a community of populations and also the ____________ environment. The biosphere encompasses all of the ____________ of the Earth's soil, water, and air where living organisms are found.

Answers

Answer:

Ecology is the study of the interactions among all organisms and their physical environment. A habitat is the place where an organism lives. A population is all the individuals of the same species found in the same location. A community consists of all of the various populations interacting at a locale. An ecosystem contains a community of populations and also the non living environment. The biosphere encompasses all of the ecosystem of the Earth's soil, water, and air where living organisms are found.

Explanation:

Ecology is the study of how living organisms interact with each other as well as their environment.

Habitat is a natural environment where an organism or community of organisms live.

A population is a group of organisms of the same species living in a given area while a community consists of populations with different species living in a given area and interacting with each other.

An ecosystem consists of different living organisms (all the populations) in an area as well as the non-living environment.

The biosphere encompasses all of the ecosystem of the Earth's soil, water, and air where living organisms are found.

Ecology is the study of the interactions among all organisms and their physical environment. A habitat is the place where an organism lives. A population is all the individuals of the same species found in the same location. A community consists of all of the various populations interacting at a locale. An ecosystem contains a community of populations and also the non living environment. The biosphere encompasses all of the ecosystem of the Earth's soil, water, and air where living organisms are found.

In an Antarctic pelagic community, the primary producers are phytoplankton, which serve as food for the dominant grazing zooplankton, especially krill and copepods, both of which are crustaceans.

These zooplankton species are in turn eaten by various carnivores, including other plankton, penguins, seals, fish, and baleen whales. Squids, which are carnivores that feed on fish and zooplankton, are another important link in these food webs, as they are in turn eaten by seals and toothed whales (Figure 1).

Figure 1: Arrows follow the transfer of food from the producers (phytoplankton) up through the trophic levels. For simplicity, this diagram omits decomposers.

Antarctic krill (Euphausia superba) is an important source of food for whales, seals, squid, fish, and many species of birds. Its abundant biomass is one of the largest on Earth. Figure 2 compares the effects of krill harvesting on species richness within two small sections of the Antarctic region; one section was subject to krill harvesting and the other section was not.

Describe how the autotrophs facilitates the flow of energy through the Antarctic ecosystem. In the Antarctic pelagic community, there are three types of seals. The leopard seals eat birds, but the crabeater and elephant seals do not. Explain how the interactions between seals and other species may affect their food sources.
Identify the independent variable of the data graphed in Figure 2. Explain one way this variable is affecting the biodiversity of the Antarctic food web.
Analyze the change in species richness with or without krill harvesting. Predict how the removal of krill from the Antarctic ecosystem will affect its long-term structure.
Justify the claim that the Antarctic krill is a foundation species, not a keystone species. Provide evidence to support your claim.

Answers

Answer:

a) the autotrophs produce their own energy in their system and synthesize surrounding energy, which allows for the flow of energy as they are the primary producers at the bottom of the food web shown in figure 1 who transfer and facilitate their energy when they are consumed by the organisms in higher levels. This facilitation of energy continues where the population of these autotrophs is stable and the cycle of consumption and synthesis of energy from one trophic level to another and there is a diverse amount of energy distributed in the ecosystem. The leopard and Elephant seals have a similar food preference which may cause competition for resources in the ecosystem between the two more than that of the crabeater seal as they rely solely on krill in the ecosystem to survive. If there was more competition for the krill or a decrease in population, their population is sure to suffer as well.

b) The year is independent of the number of species in the data graphed. This variable affects the biodiversity in the food web where we witness the number of species (hundreds) likely to witness an increase over time when krill are harvested and a decrease in the number of species without krill harvesting. This, in turn, may prove that krill is a keystone species crucial in the food web and ecosystem where the antarctic krill population's presence will influence the number of species as well.

c) The changes in species richness with krill harvesting, as per mentioned, will show an increase in species number as the krill's energy is transferred throughout the ecosystem by consumption, as implied in the food web. The changes in species richness with a lack of krill harvesting, or some organisms unable to consume the energy of the krill, was shown to have a decrease in species # over the years. This will affect the long term structure of the ecosystem as the organisms who rely on krill and even those in the trophic levels which rely on species who consume krill will drop dramatically, and the lowering of the number of organisms in a keystone species will cause a decrease in speciation of the ecosystem (possibly quite rapidly due to the dependence we witness on it) as well as a disruption in the energy flow.

d) we can affirm that the krill are in fact not a foundation species, but a keystone species as they show no specific traits of facilitating the populations of the species in the ecosystem, and don't appear to benefit other species in the ways foundation species do (ie. they are autotrophs and cannot provide shelter for other species, but we can also say that they are the sole energy producers for the crabeater seals, which can be a trait of a foundation species)- instead exhibiting the traits of a keystone species as they produce an abundance of energy in the ecosystem and the removal of them (as shown in figure 2), causes a population decrease all around.

Explanation:

ur welcome i just did this myself so pls paraphrase as much as u can also like a bit of an explanation its kinda obvious from the chart that they all rely on the krill and stuff so removing it (or not harvesting or something) would be bad. again pls paraphrase as much as u can and good luck

The Great Rift Valley in Africa and the Mid-Ocean Ridge were all created by a BLANK
A boundary, where two tectonic plates
pull apart.

Answers

Answer:

The Great Rift Valley in Africa and the Mid-Ocean Ridge were all created by a

Explanation:

The Great Rift Valley in Africa and the Mid-Ocean Ridge were all created by a divergent boundary where two tectonic plates pull apart.

What is a Divergent boundary?

This type of boundary occurs when two tectonic plates pull away from each other.

Common examples are Great Rift Valley in Africa and the Mid-Ocean Ridge which were formed as a result of the divergent boundary.

Read more about Divergent boundary here https://brainly.com/question/20458241

Need help please. Which statement describes the Chesapeake Bay?

*One of Virginia's major rivers flows into the Chesapeake Bay.

*The portion of the bay located in Virginia is on its east coast.

*Chesapeake Bay is one of the largest watersheds in Virginia.

*Less than half of Virginia's water drains into the Chesapeake Bay.

Answers

Answer: C I'd say

Explanation: The Chesapeake Bay is the largest estuary in the United States. The Bay is located in the Mid-Atlantic region and is primarily separated from the Atlantic Ocean by the Delmarva Peninsula with its mouth of the Bay at the south end located between Cape Henry and Cape Charles. So tldr: C

C sounds right to me.

Name 3 important organic molecules that are partially made from phosphorus.

Answers

Answer:

As part of the phosphate group, it is a component of DNA, RNA, ATP (adenosine triphosphate), and the phospholipids that form all cell membranes.

Patrick recently married Patti, a cute girl he met at a local dance. He is considered a purebred for his tall head shape (T), which is dominant over a short head (t). If Patti is a short-headed woman, how many of their kids would be purebreds? Use your Punnett square from the previous question to help you find your answer.​

Answers

Answer:

hola

Explanation:

When crops have two parents, their offspring will all be DIFFERENT.
A True

B False

Answers

True

Explanation: In sexual reproduction one full set of the genes come from each parent. Living things produce offspring of the same species, but in many cases offspring are not identical with each other or with their parents. ... Changes in genes can be caused by environmental conditions, such as radiation and chemicals.

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