What two elements make up the majority of the Earth's atmosphere?

Answers

Answer 1

Answer:

nitrogen and oxygen

Explanation:

Nitrogen and oxygen account for 99 percent of the gases in dry air, with argon, carbon dioxide, helium, neon, and other gases making up minute portions.


Related Questions

What observations did charles darwin make about finches in the galápagos islands?

Answers

Answer:

He noticed that each finch species had a different type of beak, depending on the food available on its island. The finches that ate large nuts had strong beaks for breaking the nuts open.

What are the primary elements of the nervous system responsible for analyzing and transmitting information

Answers

Answer:

Neurons

Explanation:

Neurons are the fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between. Hope this helps :)

What method is used in this experiment to make the plasma membrane of E. coli more fluid and easier for the foreign DNA to enter

Answers

Answer:b

Explanation:

What is the relationship between the light-dependent and light-independent reactions of photosynthesis

Answers

Answer:

In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.

Explanation:

hope it's help♡

Question 2 (Multiple Choice Worth 2 points)
(01.02 MC)
Sucrose and lactose are two carbohydrates that have the same molecular formula (C12H22011). Which of the following
O They are made up of differentlmino acids.
O They are monosaccharides with different atoms bonded to their rings.
O They each have two glucose molecules, but the arrangement differs.
O They are made of different combinations of monosaccharides.
Question 3(Multiple Choice Worth 2 points)

Answers

Answer:

Last one is correct

Explanation:

Sucrose is made of glucose and fructose

Lactose is made of glucose and galactose

List reasons you would or would not be concerned about eating genetically modified food

Answers

Answer:

Reasons I would be concerned about eating GMO foods:

Explanation:

The FDA declaring them to be "substantially equivalent" to non-GMO foods amid controversy that adequate scientific testing had not been done.

Michael Taylor being in the FDA when "substantial equivalence" was declared. Michael Taylor was a Monsanto employee before taking the position at the FDA.

The technology itself of taking a gene from one species and inserting it into another species (horizontal breeding). While that may be perfectly harmless it is new technology that many believe has not been proven to be safe.

Greater amounts of pesticides being used on GMO crops, which means more pesticides may be getting in our foods.

Crops that are engineered to produce an insecticide in the plant itself possibly having harmful health effects on us. There is some evidence that this may be happening.

What is the main purpose for plants to conduct photosynthesis?

Answers

Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.

what will happen to the cell?

A. it will shrink
B. nothing
C. it will explode​

Answers

Answer:

B

Explanation:

someone help me asap

Answers

Answer:

its c

Explanation:

because it has a definition on it

Which of the following food items would be the most energy efficient to eat?
A. Grilled chicken
B. Steak
C. Apple
D. Shark fin soup

Answers

Answer:

Apple

Explanation:

The food item that would be the most energy efficient to eat is an Apple. The correct option is C.

What do you mean by energy-efficient?

The meaning of energy-efficient is the objects that have high energy but are low in calories. Fruits and vegetables have ample amounts of energy and are good sources of natural sugar. These items are good for health and provide energy at the same time.

The food items that are given are grilled chicken steak, and shark fin soup are all non-veg items, and contain a large amount of fat in them. But apple is a fruit, and it is low calorie and rich in fibers and energy.

Thus, the correct option is C. Apple regarding the food items that would be the most energy efficient to eat.

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Taq polymerase:
A. is denatured at temperatures above the normal human body temperature.
B. is produced in viruses and bacteria.
C. can remove the mineral deposits from rusting pipes.
D. can break down the sludge in oil refinery tanks.

Answers

Answer:

Taq polymerase is a thermostable DNA polymerase I named after the thermophilic eubacterial microorganism Thermus aquaticus, from which it was originally isolated by Chien et al .The function of Taq DNA polymerase in PCR is to amplify or synthesize DNA or gene of interest for various downstream applications. It's a type of thermostable DNA polymerase, work at a higher temperature as well. so its A

__________ are intestinal parasites that can live up to 20 years and grow up to 50 feet in length. A. Toxoplasmosis B. Amoebae C. Malaria D. Tape worms Please select the best answer from the choices provided. A B C D.

Answers

Answer:

D. Tapeworms

Explanation:

I took test EDG2022

how is the malphigan body adapted for it's function

Answers

it adapted because in order to be able to run in the human body the heart has to be able to operate

ANSWER FOR BRAINLIEST!

Answers

Answer:

2

Explanation:

Darwin's opinion that living forms must be descended from extinct forms was most closely related to his consideration of ___.

Answers

Darwin's opinion that living forms must be descended from extinct forms was most closely related to his consideration of the fossil record.

A psychologist working from the biological perspective would study all of the following to see how they affect behavior and cognitive processes except __________. A. Attention B. Brain cells C. Genes D. The nervous system Please select the best answer from the choices provided A B C D.

Answers

Answer:

Attention

Explanation:

Just took the test

A psychologist working from the biological perspective would study all of the following to see how they affect behavior and cognitive processes except Attention. The correct option is A.

Thus, When a psychologist approaches his or her job from a biological standpoint, he or she should not take into account attention as a factor because it is a psychological factor rather than a biological one.

Brain cells, genes, and the nervous system can all be thought of as biological elements.

It can be utilized to analyze how the brain, genes, and nervous system affect cognition and behaviour.

Thus, A psychologist working from the biological perspective would study all of the following to see how they affect behavior and cognitive processes except Attention. The correct option is A.

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which pathways compose the autonomic nervous system

Answers

Answer:

sympathetic division and the parasympathetic division.

Explanation:

The two divisions of the autonomic nervous system are the sympathetic division and the parasympathetic division.




Depletion time describes the length of time it takes to use up

Answers

Answer:

80% of a mineral reserve

Explanation:

i got 100% on this unit

Could you please help me on this I could use some correct assistance! Your help would be great ❣️I believe you just have to put yes or no.

Answers

Page 1 - Answers

1a. Prokaryotic cells doesn't have a nucleus.

1b. Eukaryotic cells have a nucleus.

Page 2 - Answers

2a. Prokaryotic cells doesn't have any membrane-bound organelles since they're single cells.

2b. Eurkaryotic cells have a membrane-bound organelles. If they didn't why would they have a nucleus?

3a. Prokaryotic cells have a plasma membrane.

3b. Eukaryotic cells have a plasma membrane too.

4a. Prokaryotic have circular DNA.

4b. Eukaryotic cells also have DNA.

5a. Prokaryotic cells have cytoplasma.

5b. Eukaryotic cells also have cytoplasma.

6a. Prokaryotic cells have ribosomes.

6b. Eukaryotic cells also have ribosomes.

7a. Most prokaryotic cells have a cell wall. Mostly plant cells have cell walls.

7b. Eukaryotic cells don't have a cell wall. Like I said, plant cells have cell walls.

8a. Prokaryotic are simple cells, since they don't have lots of organelles.

8b. On the other hand, prokaryotic cells are more complex since they have lots of organelles.

9a. Prokaryotic cells are smaller than Eukaryotic cells. They measure in 0.1 to 5.0 micrometers.

9b. Eukaryotic cells are much bigger, measuring in 10-100 micrometers.

10a. Prokaryotic cells are unicellular.

10b. Eukaryotic cells are multicellular.

11a. Prokaryotic cells are in the Monera Kingdom, which consists of bacteria.

11b. Eukaryotic cells are in the animalia, plantae, fungi, and protista kingdom.

Hope this helps! Good luck :D

identify the location of reduction in an electrochemical cell.

Answers

Answer:

cathode electrodes.

Explanation:

Electrochemical cells have two conductive electrodes, called the anode and the cathode. The anode is defined as the electrode where oxidation occurs. The cathode is the electrode where reduction takes place.

Oxygen sag curves can occur in streams when ____. Group of answer choices bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool or cold

Answers

Oxygen sag curves can occur in streams when bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool .

What is biodegradable waste?

The waste which has been recycled and converted into nutrients for plants as well as crops and for other use are known as biodegradable waste. It has been also known as any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms and other living things.

Composting has been possible with the wastes which can decay by itself, like fruit and vegetable peels, leaves, flowers etc. Non biodegradable wastes will not decay by itself.

Therefore, Oxygen sag curves can occur in streams when bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool.

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What is released by fat cells to signal that the body has had enough to eat, and also influences BMR

Answers

I believe it is leptin.

What process allows the cell to remain efficient

Answers

Answer:

cell growth control

Explanation:

could you give me brainliest?

How would you describe what happened to the matter (atoms, elements, molecules) during the cellular respiration? Explain your answer.
1. Matter was created
2. Matter was destroyed
3. Matter was rearranged
4. Matter went through no changes

Answers

3. Matter was rearranged

why should you lower the stage all the way down after using a microscope?

Answers

Answer:

Reducing the amount of light improves contrast, making the specimen "stand out" against the background. Some microscopes have an annular condenser, which is a plate under the stage that can be rotated. The plate consists of holes of different diameter.

Explanation:

PLZ HELP! why it is important to base scientific theories and models on empirical evidence as opposed to other ways of knowing such as religion​?​

Answers

Answer:

A theory not only explains known facts; it also allows scientists to make predictions of what they should observe if a theory is true. Scientific theories are testable. New evidence should be compatible with a theory.

Explanation:

contains stem cells that develop into all cells of the body in a process called hematopoiesis

Answers

Answer:

Bone marrow is soft, spongy tissue at the center of bones, and it plays an essential role in creating RBCs. The marrow produces stem cells, which develop into RBCs, white blood cells, and platelets.

Mark as brainliest

Explanation:

What is the main difference between organisms that share many characteristics and organisms that do not?

Answers

Answer:

The more derived characteristics organisms share,the greater their degree a kinship. For instance,a derived characteristic in plants is the presence of the vascular tissue.Although all organisms share similar traits.

Explanation:

Hope this helps.

2. Why are unicellular organisms considered organisms? Exp

Answers

Answer:

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Unicellular organisms include bacteria, protists, and yeast

When does osteogenesis begin?

*When a fetus is 13-15 weeks old
When a baby is born
When a fetus is 32 weeks old
When a child is 2 years old

Answers

Answer:

A. When a fetus is 13-15 weeks old

Explanation: is correct. post protected

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