Help with Biology Questions (AND I DO DO MY HOMEWORK) HELP?

Question

2.Nitrogen fixation converts gaseous nitrogen into ammonia and ammonium compounds. Which of the following is true?

a.The air in the atmosphere is about 20% nitrogen gas.

b.About half of all living things require nitrogen for survival.

c.Plants and animals can not process the nitrogen from the nitrogen gas in the air.

d.none of the above

3. In any food chain the total amount of energy always ____________.

increases

decreases

stays the same

decreases then increases

4. Ninety-six percent of all living things are made up of the following elements:

Carbon, Oxygen, Nitrogen and Hydrogen

Oxygen, Hydrogen, Water and Carbon

Nitrogen, Sodium, Oxygen and Hydrogen

Hydrogen, Oxygen, Potassium, and Water

5. Which of the following is NOT part of a DNA molecule?

nitrogen base

phosphate

potassium

sugar

6. A picture representation for predicting what offspring will look like is a(n) ______________.

genotype

Punnett Square

allele

gene

Answer 1

2 C
3 decrease
4 CONH
5 Potassium
6 genotype(maybe)

hopes this helps

Answer 2

2 c is the best answer.
3. The answer your teacher wants is "decreases." The higher level you get in the chain, the less energy it gets from the previous level.
4. Carbon, Oxygen, Nitrogen and Hydrogen
5. Potassium (c'mon, you should know that one)
6. Punnett Square. Actually, that's a graphic representation and not a picture.

Answer 3

2 c .
3. stays the same
4. Carbon, Oxygen, Nitrogen and Hydrogen
5. Potassium
6. Punnett Square.

Answer 4

a. Nitrogen is 78% of air
b. All living things require nitrogen for survival
c. Indeed, plants and animals cannot process nitrogen gas from the air. Only bacteria living in the roots of legume plants can process nitrogen. Or humans combining nitrogen gas with hydrogen in chemical plants.

For your next question, you should divide everything into small parts. No one is interested in your long questions.

Answer 5

2. C
3.Decreases- 10% of energy is lost each time
4. No idea, sorry :(
5.Potassium
6. Punnet square

I feel bad for you that you have biology homework, because I hate Biology, but we just covered this stuff the last month.
Good Luck and happy holidays!

Answer 6

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