Birds have air sacs and lungs. When birds
breathe (in / out,) oxygen-rich air fills the
lungs and air sacs. When birds breathe
(in / out), the oxygen-poor air leaves the
lungs, and stored fresh air enters the lungs from
the air sacs. This means that birds always have a
supply of oxygen-(rich / poor) air.

Answers

Answer 1
In,, out,,, rich is the correct answer to this question

Related Questions

Which of these body systems transports glucose and other substances in the blood
to the cells of the body?

A) Circulatory system
B) Endocrine system
C) Digestive System
D) Reproductive system

Answers

A, because the heart pumps blood.

Answer:

answer is A

circulatory system

Explanation:

The Blood is a connective tissue of the circulatory system, transporting absorbed nutrients to cells like O2, glucose, and amino acids, and waste products from cells like CO2 and urea. It supports cellular metabolism by transporting synthesized macromolecules and waste products.

GGACGCCGA translated

Answers

Answer:

CCTGCGGCT

Hope this helps :)

The process when rocks break into smaller pieces due to exposure to
natural elements is called

Answers

Answer:

Weathering.

Explanation:

Weathering is the breaking down of rocks, soils, and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, water, and biological organisms.

The process when rocks break into smaller pieces due to exposure to natural elements is called weathering.

What is weathering?

Weathering can occur through physical, chemical, or biological means.

Physical weathering involves the mechanical breakdown of rocks into smaller fragments without changing their chemical composition. Chemical weathering, on the other hand, involves the breakdown of rocks through chemical reactions, resulting in the formation of new minerals. Biological weathering is caused by living organisms, such as plants and animals, that can physically break down rocks or release chemicals that can alter the rocks' composition.

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a chromosome that is not a sex chromosome

Answers

Answer:

There are 22 pairs of chromosomes that are not sex chromosomes (called nonsex chromosomes, numbered chromosomes, or autosomal chromosomes)

Discuss the meaning behind the term, “Desert of Death”.

Answers

Answer:

The desert is a very harsh place and it can be extremely deadly. The temperature is the main issue and it is very dangerous. So many people have died therefor it is called the Desert of Death.

Explanation:

Answer:
person above is correct
Explanation:

Anyone know how to do this?

Answers

Answer:

Condensation, melting, evaporation, then it is either 1 or 2

Explanation:

Which is the thinnest of Earth's spheres?

Answers

The crust is the outermost “skin” of Earth and variable thick- nesses; it is thickest under mountain ranges (70 km) and thinnest under the mid- ocean ridges (3 km).

Answer:

The crust is the thinnest of Earth's spheres

Explanation:

                                        Hope this helps!❤ヾ(•ω•`)o

please help me with this homework question!

Answers

Answer:

b I do believe

Explanation:

can you help me

The main difference between the four nucleotides that make up DNA is that they have differentRequired to answer. Single choice.

Answers

Answer:

bases.

Explanation:

Nucleotides are the basic building blocks that make up DNA, consisting of a deoxyribose sugar, phosphate group, and nitrogenous base. The main difference between the four nucleotides is the nitrogenous base, Adenine, Thymine, Guanine, or Cytosine. Adenine pairs with Thymine, and Guanine pairs with Cytosine. The order in which these pairs come in code for proteins and hold genetic information.

If a DNA sequence is T A C C A T G G A A T T A C T, what is the matching RNA code?
A.) T T C A A T G G T C T A G G G
B.) A A C A A U G G U C U A G G G
C.) T A C C A T G G A A T T A C T
D.) A U G G U A C C U u A A U G A

Answers

Answer:

d

Explanation:

there change only tymine in cytosine

In a human, the movement of glucose from the digestive tract to muscle cells is most directly a result of

Answers

Answer:

absorption and circulation

Explanation:

While digestive enzymes are produced in numerous parts of the digestive system, the pancreas produces the majority of them.

What is the important role of metabolism in digestive tract?

In the digestive tract, digestion and absorption take place. All body cells may access the nutrients after they are absorbed, and the cells use them for metabolism.

The six actions, or functions, of the digestive system prepare nutrients for use by body cells.

The gastrointestinal tract, which was previously mentioned in this study, is a specialized sensory system.

In charge of detecting ingested glucose and relaying information to peripheral tissues or the brain to control glucose metabolism.

Therefore, In a human, the movement of glucose from the digestive tract to muscle cells is most directly a result of absorption and circulation.

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Directions: Write the word TRUE if the statement is correct and if not, underline the word or statement incorrect and correct answer on the space provided.
write
1. All x-ray are dangerous because they can damage healthy living cells of the body.
2. Ultraviolet in sunlight radiation produces vitamin D in the skin and gives us tanning effect
3. Microwaves can penetrate the atmosphere of the earth.
4. Radio wave used to transmit sound and picture information over long distance.
5. Infrared wave also damage cells, causing mutation.
6. Gamma rays is absorbed by water molecules, so it can be used for cooking.
7. Over-exposure to UV radiation may cause skin cancer.
8. Low frequency waves are suitable for communication over great distances.
9. Most EM waves are visible to the eye of humans and animals.
10. Visible light are used by banks to check the signature on a passbook.
Modified True or False.

Answers

Answer:It can come from unstable atoms that undergo radioactive decay, or it ... Ionizing radiation can affect the atoms in living things, so it poses a health risk by ... Ionizing radiation comes from x-ray machines, cosmic particles from ... However, as with alpha-emitters, beta-emitters are most hazardous

Explanation:

The organisms that are most likely present in the largest numbers are
А
Microscopic algae
B
Herring gull
С
Crab
D
Common seals

Answers

Answer:

Microscopic algae should be the answer

Translate this RNA strand into amino acids
3’-UCAAGUCAUUAG-5’
________________________________

Answers

Answer:

AGUUCAGUAAUC

Explanation:

This might be slightly wrong, it was somewhat difficult for me to keep up with which letter I was on. Adenine always pairs with Uracil and Guanine always pairs with Cytosine.

Amino acids for given RNA strand is Serine - Leucine - Cysteine - Aspartic acid - Leucine.

There are 20 amino acids that are present in nature and are necessary for a number of biological functions. Although the molecular structures of these amino acids vary, they all have a core backbone made up of an amino group, a carboxyl group, and a side chain. Each amino acid is distinct due to its side chain, which also gives it special characteristics and abilities. Hydrophobic, hydrophilic, acidic, basic, and aromatic side chains can all be divided into different categories. How amino acids interact with their surroundings and other compounds is determined by this classification. Amino acids for given RNA strand is Serine - Leucine - Cysteine - Aspartic acid - Leucine.

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how do organisms affect biodiversity in an ecosystem?

Answers

Answer:

by increasing the likelihood that species will use complementary resources and can also increase the likelihood that particularaly productive or efficient species is present in community.

Explanation:

may it will helps you...

in what ways are plants and animals dependent on eachother?

Answers

Answer:

Animals like herbivores and omnivores depend on plants for their food

Plants depend on animals

Plants also provide shelter for animals

They make oxygen for the animals to live.

When animals are dead the slowly decompose to form a natural manure

for the plants

Animals breath out carbon dioxide which is needed for plant for the process of photosynthesis

hope it helps <3

Earth rotates from ___ to ___ (direction N,E,S,W)

Answers

Earth rotates from west to east.

If two roan cattle were crossed, what percent of the offspring would you expect to have a roan coat? Fill in the blank text field 1

Answers

Answer:

50%

Explanation:

I just did the question

If two roan cattle were crossed, then 50% percent of the offspring are expected to have a roan coat color.

A heterozygous individual is an organism that carries out two different alleles for the same gene locus.

In this case, the 'roan' coat color is observed in heterozygous individuals (genotype R1R2).

In consequence, the cross between two heterozygous individuals will produce a progeny in a 1:2:1 proportion.

In conclusion, if two roan cattle were crossed, then 50% percent of the offspring are expected to have a roan coat color.

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what is not considered evidence for evolution

Answers

Answer:

The act of throwing rocks at each other?

Explanation:

write a note on profundal zone​

Answers

Answer:

Profundal zone is the deep water zone of any lentic water body i.e. lake or a pond where the light can no longer penetrate because it is located below the range of effective penetration of light mostly below the thermocline. The lack of light and oxygen determines the type of biological community living there

Why is lactic acid the end product of fermentation and not the PYRUVATE molecule?

Answers

Answer:

Well the main difference would be that lactic Fermentation doesn't use oxygen while the Pyruvate cycle does

Explanation:

Lactic Fermentation is Anaerobic Respiration

The cycle that uses Pyruvate is Aerobic Respiration

Identify the three parts of the cell theory

Answers

Answer:

-Cells are the basic units of structure and function for living things.

-All living things are made of cells.

-All cells come from pre-existing cells.

Explanation:

list 6 living organisms found in hydrosphere​

Answers

Explanation:

lizards, amphibians, fish, crustacean species, turtles, penguins, polar bears, sharks, dolphins

HEYOO PEEPS The more inertia, the more __________ we need.


speed


acceleration


force

Answers

Answer:

i believe that the answer is "force"

i hope this is the answer you are looking for

Explanation:

How is energy produced using solar energy

Answers

It’s produced by the sun

Answer:

by using the suns uv rays

Explanation:

The region that overlaps with the upper mantle and is below the lithosphere is an area of

rock that moves in a somewhat plastic like motion: What is this region called?

Asthenosphere

O Upper Mantle

O Lithosphere

O Outer Core

Answers

The correct answer would be Asthenosphere.

The Asthenosphere is defined as the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.

I would appreciate brainliest, if not that's ok!

What term shows that life on earth has not always been the same as it is now 1. Mantle 2.fault 3.fossils

Answers

Answer:

The answer is number 2. Fault.

PLEASE HELP I WILL MARK BRAINALISTTTT

Answers

Answer:

22. is a

23. is b

Explanation:

carbohydrates are made up of carbon, hydrogen, and oxygen

hope this helps :) have a nice day !!

**please let me know if this was wrong**

IM GIVING 30 POINTS TO WHOEVER ANSWERS THESE
1- how does modern technology provide evidence that all organisms have a common ancestor?

2- what new discoveries about evolution have modern technology made possible?

Answers

Answer: 1. Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features). Similarities and differences among biological molecules (e.g., in the DNA sequence of genes) can be used to determine species' relatedness.

2. The changes in our behavioral patterns and adaptations that are caused by these technological advances could prove to be the primary driving forces behind the next stage of evolution for our species. These members of the species are more likely to reproduce and pass their genes on to their children.

Explanation:

answer 1.from the claudography graph shows how the animals are related from a common ancestor
answer 2. the machines used to examine bones and even embryos

why flies fly?
explain what do you think?​

Answers

Answer:

They have wings that flap back and forth

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