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Nookie1986 [14]
2 years ago
15

I have to do a survey please help!

Biology
2 answers:
Alja [10]2 years ago
7 0
It made me feel sad but also happy that they didn’t chose
Nitella [24]2 years ago
5 0
Made me feel like I hated reading like Fr fr and I still do
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A new species of aquatic chordate is discovered that closely resembles an ancient form. It has the following characteristics: ex
prisoha [69]

Answer:

The correct answer is B. No jaws. The new species resembles an ostrachodermi.

Explanation:

Ostrachodermi is an extinct class of agnate fishes, considered as the most ancient vertebrate. They were little filtering organisms, with no mandible or jaws, and no paired fins. Their bodies were covered by squama, bony plates, and shields. They used to move in the bottoms when they were feeding on detritus.

5 0
2 years ago
The site of photosynthesis is in the
konstantin123 [22]

Answer:

In plants and algae.

Explanation:

Photosynthesis takes place in organelles called chloroplasts. A typical plant cell contains about 10 to 100 chloroplasts. The chloroplast is enclosed by a membrane.

8 0
3 years ago
Muchos medicamentos son productos
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2 years ago
In a diploid organism, there are ___ number of copies of most genes. In a population, there may be many different gene sequences
sineoko [7]

Answer:

In a diploid organism there are two copies of most genes.

The versions of the genes are called alleles.

Explanation:

Hello!

The genetic servants of a population are all variants of each of the genes present. These variables are possible thanks to the mutations that occur in the formation of the zygote (before or after fertilization).

When part of the DNA of an organism undergoes a point mutation (on one or a few nitrogenous bases) the body activates a series of responses to reverse it, however sometimes the mutation is maintained and can give rise to a change in a protein.

Sometimes and under certain circumstances (the change should not cause death or significant disadvantages in the body that is born) the mutation is maintained in the population giving rise to different alleles of the same gene.

In an organism there are two copies of each gene (genotype) but only one of them (phenotype) is expressed.

The allele of the gene that is expressed may depend on various factors but the dominant allele is usually expressed.

Successes with your homework!

7 0
3 years ago
What is an example of stablizing selection
Alika [10]
The number of offspring 
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2 years ago
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