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Serhud [2]
3 years ago
14

What is natural selection? Write a definition of this in your own words.

Biology
1 answer:
frozen [14]3 years ago
8 0
Natural selection is a process where living things that are better adapted to the environment around them survive longer and produce more off springs .
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Answer the question pls
Katyanochek1 [597]

Answer:

Organisms have different proportions of bases in the DNA.

Explanation:

Option B is correct because different organisms have different proportions of bases in their DNA. This makes each species unique. This means that it is not possible for multiple species of have similar proportion of DNA bases.

Other options are incorrect because of following reasons:

1. All the genetic information cannot be universal among all organisms. Different species performs different functions and the genetic information differs accordingly.

2. All animals cannot have similar amount of bases in their DNA. Different animals have different bases.

3. The given table doesn't say that plants are least related. In fact, all organisms differs in terms of DNA bases proportion.

3 0
3 years ago
I need help with the image (phenotypes and genotypes).
Flauer [41]

Answer:

See the answer below

Explanation:

1. <u>Only one phenotype</u> is present in the F1 generation offspring. Since tallness was dominant over shortness, all the offspring in the F1 generation appeared tall.

2. <u>Two phenotypes </u>are present in the F2 generation - 9 tall and 3 short. The short trait reappeared at the F2 generation.

3. The genotype of the F1 offspring would be heterozygous. Assuming the purebred tall is AA and the purebred short is aa:

     AA   x   aa

  Aa   Aa   Aa   Aa

All the F1 offspring will appear tall and their genotypes would be heterozygous.

4. Assuming that the allele for height is denoted with A (a), <u>the genotype of the purebred tall plant would be AA. </u>

5. In a similia vein, <u>the genotype of the purebred short plant would be aa. </u>

5 0
3 years ago
Which best defines a diploid cell during meiosis
Gwar [14]
Haploid is when a cell has a complete set of chromosomes while a diploid is when it has half.
6 0
4 years ago
Read 2 more answers
State your answer as meiosis I or meiosis II followed by a comma and the name of the phase (for example, if your answer is meios
Andreas93 [3]

Answer:

meiosis I, anaphase

Explanation:

During meiosis 1, anaphase, the homologous chromosomes separate towards the opposite poles,line up in a random order and in crossing over, create genetic diversity.

6 0
4 years ago
What are the main functions of polysaccharides in plants
aksik [14]
Provides support and energy
5 0
4 years ago
Read 2 more answers
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