air is made of ____and ____​

Answers

Answer 1

Answer:

The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.

Answer 2

Answer:

air is made of nitrogen and oxygen


Related Questions

If you were born November 16, 1986 how old are you today

Answers

Answer:

2021-1986 = 35 years old

Explanation:

Answer
You say
2021-1986
The person is 35 years old

Hope this helps :)

Say that you look at the nuclei of 100 skin cells taken from the same person. About how many of these skin cells would you expect to be in interphase

Answers

Answer:

45 cells would be in the interphase

In the nuclei of 100 skin cells. The number of skin cells would be in interphase is 45.

What are cells?

Cells are the key unit of living organisms. The cell divides into many cells through the process of cell division.

Prokaryotic cells are the primitive type of cells that are present only in unicellular organisms, and they do not undergo cell division. These cells do not have true cell organelles and a nucleus, in that DNA is present in coil form in the cytoplasm. They contain ribosomes the organisms are bacteria that contain prokaryotic cells.

Eukaryotic cells are higher cells that contain cell organelles they have to perform various complex functions of large organisms. They have a nucleus which contains DNA or genetic material, it does not have flagella.

Therefore, the number of skin cells in the interphase is 45 cells.

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can some one help me with this please​

Answers

Answer:

7 answer is b

8 answer is d

9 answer is a

Explanation:

Answer:

B

D

A

Explanation:

:)

How does respiration impact the amount of carbon in the atmosphere?

Answers

The process of respiration produces energy for organisms by combining glucose with oxygen from the air. During cellular respiration, glucose and oxygen are changed into energy and carbon dioxide. Therefore, carbon dioxide is released into the atmosphere during the process of cellular respiration.

so how many eyes do a dog and cat have

Answers

Answer:

i think its 2

dog have 2 eyes and cat also have 2 eyes

The Forensic Anthropology Facility was founded by whom?

Answers

was found in 1981 by anthropologist William Bass to research human decomposition and insect activity.

Identify this functional group

Answers

Answer:

Hydroxyl

Explanation:

Hydroxyl groups are simple structures consisting of an oxygen atom with two lone pairs bonded to a hydrogen atom.

A hydroxy or hydroxyl group is a functional group with the chemical formula -OH and composed of one oxygen atom covalently bonded to one hydrogen atom.

Using these given definitions, a hydrogen bond is labeled with one linkage, while a covalent bond is with two links to the Carbon Atom.

See attached image for a similar diagram for proof.

How toxins are accumulated as you go up in trophies levels in an ecosystem

Answers

Answer:

hi sorry, i want stitches

Which of the following describe how seabird populations are affected by climate change?

Answers

Answer: Varies

Explanation:

It depends on the time of season at the given moment.

This model chose to include certain features and exclude other features. For example, this simulation only includes rabbits, wolves, and grass but there are other predators of rabbits and other food sources for rabbits. Why do you think the creators focused on these data elements and not others

Answers

The creator focused on these data elements and not others because he was trying to create a food chain instead of a food web.

In the ecosystem, the living and non-living things interact over time leading to exchange of energy.

A food chain can be defined as the steps through which energy transfer occurs in an ecosystem.

The energy flows from the producers (grass), primary consumers, (rabbits) and then the secondary consumers (wolves).

The energy flow is indicated with an arrow thus,

grass ---> rabbit -----> wolves.

Food chain, therefore includes linear sequence of organisms.

Food web on the other hand illustrates a complex feeding relationship within the ecosystem.

The food web is made up of a prey that can be eaten by more than one predator.

Therefore, even though there where other predators of rabbits and other food sources for rabbits, he chose only few features to create a food chain.

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In very extreme weather, the xylem cells are damaged as well. Describe how the plant is affected if the xylem is unable to function correctly.

Answers

Answer:

The plant will die

Explanation:

Xylem's job is to transport water and minerals from the soil to the parts of the plant. Without it the plant won't receive the required minerals and the plant will die.

is broccoli a dicot or monocot?

Answers

Answer:

Broccoli is a dicot

Explanation:

I looked it up on the internet :)

Unlike monocots, the pollen grains of dicot plants have three pores and are called trisulcate. Dicot plants can also have bark and secondary growth increases the diameter (girth) of the plant. Examples of dicots include potatoes, tomatoes, apples, pears, peaches, cauliflower, peppers, broccoli, and cabbage.

Foods that are dicot: Dicots​ ​- ​Flowering plants with two seed leaves. Examples of these are: fruits, vegetables, mangoes, lentils, blackberries, potatoes, and avocados.

Foods that are monocot: Other economically important monocotyledon crops include various palms (Arecaceae), bananas and plantains (Musaceae), gingers and their relatives, turmeric and cardamom (Zingiberaceae), asparagus (Asparagaceae), pineapple (Bromeliaceae), sedges (Cyperaceae) and rushes (Juncaceae), and leeks, onion and garlic ( ...

Hope this helped!♡︎シ

what is the main reason scientist do experiments?
A) to find out if a hypothesis is correct
B) to provide jobs for scientists
C) to find different ways to use lab equipment
D) to educate science students

Answers

A. to find out if a hypothesis is correct.

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DNA and RNA contain nucleotides that code for what?

A Carbonic Acids

B Amino Acids

C Hydrochloric Acids

D Lactic Acids

Answers

Answer:

your answer is definitely B: Amino Acids

Explanation:

Answer:

B

Explanation:

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