What must be true for natural selection to occur?

Biology

1 answer:

Rudiy273 years ago

5 0

Answer:

In order for natural selection to occur, reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population must occur. If they happen natural selection automatically results.

Explanation:

Hope this helps boo<3

You might be interested in

Cardiac muscle causes movement in the

scoray [572]

Answer:

(look at explanation)

Explanation:

Cardiac muscle tissue works to keep your heart pumping through involuntary movements. This is one feature that differentiates it from skeletal muscle tissue, which you can control. It does this through specialized cells called pacemaker cells. These control the contractions of your heart.

5 0

3 years ago

Read 2 more answers

Explain why traits that are controlled by genes on the same chromosome do not always appear in the expected ratio in offspring.e

laila [671]

This is because the Crossing over during meiosis cause is a homologous chromosomes to exchange alleles resulting in new combos of alleles in the offspring. Crossing over occurs between prophase 1 and metaphase 1 and is the process where homologous pair up with each other and exchange different segments of their genetic material to form recombinant chromosomes. It can also happen during mitotic division, which may result in loss of heterozygosity.

8 0

4 years ago

[50 points... Will give brainliest] Explain how natural selection is impacted by genetic differences, variation, and survival.

kiruha [24]

Answer:

Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population.

Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.

Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.

I changed it a lot Mark me as brainliest!