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Law Incorporation [45]
3 years ago
7

How are changes in the gene pool significant in evolution?

Biology
1 answer:
pickupchik [31]3 years ago
6 0
Changes in the gene pool are closely related to genetic mutations, which are a major part of evolution.
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What conditions are possible reasons for declining genetic diversity of a species? Select all correct answers.
yan [13]

Some conditions that are possible reasons for declining genetic diversity of a species;

▪︎loss of habitat

▪︎inbreeding

Explanation:

Loss of habitat will definitely reduce diversity because it reduces the population size from increased competition for reduced resources. Some subspecies may be completely eliminated when their niche is completely lost.

Inbreeding also reduces diversity because it results in the expression of recessive genes in a population that are mostly disadvantageous. High inbreeding rates will result in most individuals not reaching maturity to pass down their genes to the next generations.

Learn More:

For more on genetic diversity check out;

brainly.com/question/9739725

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#LearnWithBrainly

4 0
3 years ago
Which of these is an external pest
scZoUnD [109]

Answer:

C

Explanation:

Lice. External parasites are those that live on the outside of the body. A few of the most common external parasites that affect beef animals

4 0
3 years ago
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Although all of the cells in your body contain a complete set of dna, different types of cells arise because__________.
frosja888 [35]
Because different genes are switched on and off in each type of cell.
7 0
3 years ago
Name and describe the key components of the two major divisions of the nervous system.
defon

The Central Nervous System

     -Serves as the control center for the body

The Peripheral Nervous System

     -Sends information to and from the brain and spinal cord

     -Divided into the sensory somatic nervous system and the autonomic nervous<span> <span>system</span></span>

3 0
3 years ago
The cell will enter the G1 phase. During this phase, proteins and nucleotides needed for DNA replication will be produced. Also,
kolbaska11 [484]

Answer and Explanation:

The interphase is the previous step before mitosis occurs. The interphase is conformed of the G1, S, and G2 stages.

  • During the G1 stage, it occurs a high intense biochemical activity. The cell duplicates its size, and the organelles and other molecules and cytoplasmatic structures duplicate too. Some structures, such as microtubules and actin filaments, are synthesized from zero. The endoplasmic reticulum increases in size and produces a membrane for the Golgi apparatus and vacuoles, lysosomes, and vesicles. During this stage, the pair of centrioles separate, and each centriole duplicates. Mitochondria and chloroplasts also replicate.

The stages S and G2 follow the G1. Once the whole interphase is completed, mitosis occurs.

  • During the S stage occurs the DNI replication process. At this point, it also occurs the synthesis of histones and other associated proteins. This is the only stage where the DNI molecule is replicated.
  • G2 stage is the final one before the cellular division. Here it begins the slow process of DNI condensation. Duplication of centrioles completes. Structures such as spindle fibers are assembled.
5 0
3 years ago
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