Which principle of heat exchange is the most important explanation for why birds look larger in colder weather because they fluff their feathers?.

Answers

Answer 1
Fluffing creates a pocket of air near the bird that acts as insulation.

Related Questions

Question: As a result (because) of diffusion, the concentration of many types of substances:
A: always remains greater inside a membrane.

B: eventually becomes balanced/equilibrium on both sides of a membrane.

C: always remains greater on the outside of a membrane.

Answers

|| ▼ Answer ▼ ||

B: eventually becomes balanced/equilibrium on both sides of a membrane.

|| ✪ Explanation ✪ ||

Diffusion is the movement of molecules from a high to a low concentration. The effect of diffusion on different substances' concentrations is balance/ equilibrium on both sides of a membrane. In the process of the movement of molecules, the concentration becomes balanced. A typical example of diffusion is a perfume sprayed inside a room. The smell of the perfume will eventually be balanced in the entire room.

Hope this helps!

If you have any questions please ask.✪

What are the two divsions of the peripheral nervous system?

Answers

Answer:

The  answer will be somatic nervous system and autonomic nervous system.

Explanation:

Nervous system contain many interconnecting nerves that helps brain to respond according to stimuli. The nervous system is divided into central and peripheral nervous system. Peripheral nervous system again divided into the somatic nervous system and the autonomic nervous system.

What is nervous system?

The peripheral nervous system consists of nerves that comes out from brain and spinal cord.

These nerves helps to form a network for communication between central nervous system.

Peripheral nervous system is divided into:

Autonomic nervous system: It is visceral efferent system as it sends motor impulse to visceral organs.Somatic nervous system: It contain sensory and motor neurons that sends and receive sensory information from motor neurons.

Thus, there are two divisions of peripheral nervous system, these are autonomic and somatic nervous system.

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What evidence do the structures provide?the similar structure of the limbs indicates that the organisms evolved at the same time.the similar structure of the limbs indicates that the organisms evolved at the same time.the similar structure of the limbs indicates that the organisms share a common ancestor.the similar structure of the limbs indicates that the organisms share a common ancestor.the similar structure of the limbs indicates that the organisms develop at the same rate.the similar structure of the limbs indicates that the organisms develop at the same rate.the similar structure of the limbs indicates that the organisms live in the same habitat.the similar structure of the limbs indicates that the organisms live in the same habitat.

Answers

The evidence provided by the structure is that: the similar structure of the limbs indicates that the organisms share a common ancestor.

What are homologous structures?

Homologous structures are those structures that are similar and can be attributed to a common ancestor.

A common example of homologous structures in evolution are the wings of bats and the arms of primates.

Therefore, it can be said that evidence provided by the structure is that: the similar structure of the limbs indicates that the organisms share a common ancestor.

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How many sides are on a regular die? (Die is singular; dice is plural)

Answers

Answer:

6

Explanation:

Thats all... lol

Pls, if you don't mind mark this brainly tyy

C:

The study of how genes are transferred from parents to their children and the role of genes in health and disease is known as.

Answers

Heredity is the correct answer

The instructions in ______ encode the information that a cell needs to produce proteins, which are vital to living things. Multiple choice question.

Answers

Answer:

DNA

Explanation:

The instructions in DNA encode the information that a cell needs to produce proteins, which are vital to living things.

The instructions in DNA encode the information that a cell needs to produce proteins, which are vital to living things.

What is DNA?

DNA, also called deoxyribonucleic acid, is the part of a living being that carries genetic information.

The DNA encodes the information needed to synthesize proteins in living organisms.

Therefore, it can be said that instructions in DNA encode the information that a cell needs to produce proteins, which are vital to living things.

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How are proteins related to DNA? What con cause damage or a change in DNA, and how does that change the structure and function of proteins?​

Answers

Answer:

hi there, proteins are related to DNA  because DNA carries the instruction for synthesizing  proteins, which can code for a certain amino acids based on the sequence.

Explanation:

A change in  base sequence can be either good or bad. But... Usually... a mutation could be a main factor that changes the sequence of the protein, which causes it to code for a different amino acid than the original. Base pairs could either substituted,  deleted, or inserted, which usually are what a mutation could be caused by or consisted of. This is also known as a gene mutation, which are changes in genes .

hope that helps!!!

Nervous tissue is composed of _ and two types of cells: _ and _

Answers

Answer:

Nervous tissue is composed of nerves and two types of cells: neurons and glial cells.

Explanation:

Nerves tissues are composed of nerves and two types of cells are neurons and glial cells.

What do you mean by Nervous tissues?

Nervous tissues may be defined as tissues that are found in the brain, spinal cord, and nerves. They are responsible for coordinating and controlling many body activities.

Neurons are the primary type of cells that are associated with the nervous system, while glial cells may be defined as the neurons of the central nervous system which play an important role in the conduction of nerve impulses, but they are non-excitable cells.

Therefore, nerve tissues are composed of nerves and two types of cells are neurons and glial cells.

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What adaptation has the stigma developed that helps with fertilization?

Answers

An adaptation in the stigma that helps with fertilization is the ability of pollen grains to germinate on this structure. It allows plants to reproduce.

What is an adaptation?

An adaptation can be defined as a type of trait that allows organisms to survive and reproduce in particular conditions.

Adaptation favors the process of natural selection, which involves differential survival and reproduction.

Moreover, stigma is a plant structure that receives pollen grains (male gametes) during fertilization.

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A 30.0 x 10^8 L sample of nitrogen inside a rigid, metal container at 19.50 °C is placed inside an oven whose temperature is 78.50 °C. The pressure inside the container at 19.50 °C was at 864.5 psi. What is the pressure of the nitrogen after its temperature is increased?

Answers

Answer:

Answer:

3.31 atm.

Explanation:

Gay-Lussac's law states that for a given mass and constant volume of an ideal gas, the pressure exerted on the sides of its container is directly proportional to its absolute temperature.

∵ P α T.

∴ P₁T₂ = P₂T₁.

P₁ = 3.00 atm, T₁ = 20.0 °C + 273.15 = 293.15 K.

P₂ = ??? atm, T₂ = 50.0 °C + 273.15 = 323.15 K.

∴ P₂ = (P₁T₂)/T₁ = (3.00 atm)( 323.15 K)/(293.15 K) = 3.307 atm ≅ 3.31 atm.

Please help IT WOULD MEAN THE ENTIRE WORLD!!!

Answers

Answer:

-if I'm not wrong the technique is used to produce the bacteria cell is DNA cloning because after a ligation, the next step is to transfer the DNA into bacteria in a process called transformation.

-The organic compounds scientist used to cut DNA is enzymes.

-the possible result would be the transformations made and selection of the bacteria.

Fill in the Punnet Square

Answers

Aa AA Aa aa, AA Aa Aa aa, Aa aa Aa aa

Answer:

I attached a screen shot of the answer

Explanation:

An aquarium is a small closed container in which a selection of living plants and small marine animals are kept and observed. What kind of system is modeled by this setup? A) a wet B) a zoo C) a fish D) an ecosystem

Answers

Answer:

An ecosystem (D)

Explanation:

An ecosystem is a community of interacting organisms and their environment.

What is the period of time that elapses between the generation.

Answers

Answer: should be:

The latent period.

Explanation:

:)

All of the following are rivers in the fertile crescent except for the _____.tigrisnilejordaneuphrates

Answers

The jordan river is NOT part of the fertile crescent :)

Help Me What can be caused by volcanic eruptions? there is more then one answer so Select all correct answers.


A. earthquakes

B. lahars

C. shifting plate tectonics

D. landslides



PS: this is the last question to my test and I need help immediately please help

Answers

Answer:

I think option b

Explanation:

lahar What can be caused by volcanic eruptions? there is more then one answer so Select all correct answers.


What is the function of the tendons?

Answers

Answer:

A tendon is a cord of strong, flexible tissue,similar to a rope

Explanation:

yun na yun.

Explanation:

A tendon is a connective tissue that attaches muscles to bones.

Tendons may also attach musles to structures such as eye balls.

Usually they serves to hold structures together and keep them stable.

The diffusion of water molecules across a semipermeable
membrane and down a concentration gradient is known as

Answers

Answer:

Osmosis is the diffusion of water molecules across a semipermeable membrane from an area of lower concentration solution (i.e., higher concentration of water) to an area of higher concentration solution (i.e., lower concentration of water). Water moves into and out of cells by osmosis.

Which mutation would allow the cell to divide when it should not and could possibly lead to cancer?.

Answers

Answer:

meiosis

mitosis

c cc ell division

Answer this pls!!!!!!!

What do enzymes do?

Answers

Answer:

Enzymes are proteins that help speed up metabolism, or the chemical reactions in our bodies. They build some substances and break others down.

Explanation:

Can someone please help me? :( I’ll give brainliest!!

Answers

Answer:

I Think it is B

but i can really see what D is saying

Which population would benefit the most from the presence of decomposers

Answers

Answer:

population live in agricultural activities

Explanation:

decomposers recycles nutrients for soil so can plant also use it

50 Points

8. Why does Australia have so many genetically distinct organisms?

Answers

Answer:

Australia has so many genetically distinct organisms because it has been separated from other bodies of land for a very long time. This has given species in Australia a long time to evolve independently from species in other areas of the world.

true or false condensation occurs ehen water turns from a liquid to a gas?​

Answers

Answer:

false

Explanation:

.write the difference between

a.Soil formation and Soil erosion

b.Soil pollution and Soil profile

Answers

A. In soil erosion, the soil is carried away from by the wind or water from the top layer of the ground. Soil formation is making soil. It can be by the deposition of the soil from water or wind.

During apoptosis, which cellular organelle does the work of breaking up the nucleus and causing the cell to die?

ribosome

mitochondrion

lysosome

Golgi apparatus

Answers

Answer: Lysosomes

Explanation: Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria. If the cell is damaged beyond repair, lysosomes can help it to self-destruct in a process called programmed cell death, or apoptosis.

food, water, living space, and diesese are examples of what

Answers

Answer:

im pretty sure it is a habitat

Which choice best describes a plant cell? A cell that uses sugars.
B cell that has a nucleus.
C cell that has a cell wall.
D A cell that has a cell membrane. ​

Answers

Answer: C

Explanation:

Over the past four decades, researchers have identified many types of ______. Examples include growth factor receptors, transcription factors, and intracellular signaling proteins

Answers

Over the past four decades, researchers have identified many types of oncogenes, including growth factor receptors, transcription factors, and intracellular signaling proteins.

What are oncogenes?

These are specific genes in an organism that can cause the formation of cancer. These genes are prone to defects that when activate, signal for a cell to become a tumor. The genes listed in the question are some examples of the types of cells that can be oncogenes.

Therefore, we can confirm that over the past four decades, researchers have identified many types of oncogenes, including growth factor receptors, transcription factors, and intracellular signaling proteins.

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How do you think a human egg is similar to a chicken egg? How are they different ?

Answers

Answer:

They both eventually lead to the birth of a chicken or human. And they start very similarly. They are very different, also, because instead of having a physical egg, humans have oval eggs that eventually make the baby, before birth. Chickens on the other hand give birth to the chick that is still inside the egg.

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