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natka813 [3]
2 years ago
5

What 6 elements make up all lifeforms on earth?

Biology
1 answer:
alina1380 [7]2 years ago
8 0

Explanation:

oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus.

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A gain or loss of a proton creates an isotope.<br> True or false
zheka24 [161]

Answer:

true

Explanation:

hope this helps!

5 0
2 years ago
Read 2 more answers
Which term refers to the behavior of two species attempting to use the same living space food source and water source?
Ivanshal [37]
<span>Competition occurs when members of different species compete for the same resource. </span>
5 0
3 years ago
Please I need help with questions 62 and 64 and it’s very hard and I’m struggling with it and if you need to see the picture big
slega [8]
62 -- The roots absorb water for the plant, and also provide it with stability, ie to keep it from falling over.64 -- Structure B is a leaf, and a leaf's main function is to take in sunlight and perform photosynthesis, which makes food for the plant.

5 0
3 years ago
Cross a person who does not have freckles and is heterozygous for dimples with a person who has
Alja [10]

Answer:

1. 1/2

2. 1/2

3. 1/4

Explanation:

Let the allele for freckles be A or a while that of dimples be B or b.

A person without freckles but heterozygous for dimples = aaBb

A person who has freckles (whose mother has no freckles) but no dimples = Aabb

      aaBb    x    Aabb

Offspring

4 AaBb - freckled and dimpled

4 Aabb - freckled and non dimpled

4 aaBb - non freckled and dimpled

4 aabb - non freckled and non dimpled

1. <em>Probability that the parents will have a dimpled child</em> = 8/16 or 1/2

2. <em>Probability that they will have a child with freckles</em> = 8/16 or 1/2

3. <em>Probability that they will have a child with freckles and dimples</em> = 4/16 or 1/4

<u>See the attached image for the Punnet's square analysis of the cross</u>

4 0
2 years ago
Why is photosynthesis so important to living organisms?
konstantin123 [22]

Answer:

All living organisms need energy to stay alive, but only producers can directly convert energy into food.

Explanation:

The process of photosynthesis is very important because all living organisms need energy to stay alive, but only producers can directly convert energy into food.

Photosynthesis is the process whereby green plants manufacture their food in the presence of carbon dioxide and water.

  • They take light energy from the sun and produce food materials.
  • The light energy is converted to chemical energy which are stored in carbon chains as glucose.
  • The  chemical energy is then used by other living organisms for their own nourishment.
8 0
2 years ago
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