Answer:
In species with polyploid, there are more chromosomal sets than in diploid one. Becouse there are more chromosomal structures available, events like mutation, recombination, DNA lose, are more probable to occur.
As the generations pass, the accumulation of these changes tend polyploid to speciation.
Answer:
D
Explanation:
This may seem difficult to answer at first, cuz A and even B sounds plausible, but the relative direction of where she's drawing the picture is not known. And we know that the sun does not rise and set in the same place everyday. So the best answer would be D
Answer: alternating dark and light bandsof protein filaments
Skeletal muscle fibers contain striations that can be described as alternating dark and light bands of protein filaments. Actin, tropomyosin, and troponin are among the protein filaments. The dark bands are the so-called A bands. Alternating light bands are referred to as I bands.
Answer:
<h2>Liver, testosterone </h2>
Explanation:
The cholesterol is an important type of organic molecule that has many important roles in organisms. It is a sterol that is also called a modified steroid. It plays an important role in the cell membrane of the organism. Generally, it is synthesized in the liver and some other parts of the body. The synthesis of cholesterol is regulated by a homeostatic mechanism. Testosterone is synthesized from the cholesterol so cholesterol acts as starting material. Testosterone plays an important role in the development of the reproductive tissues of the male.
Answer: Swim bladders of fish at depth help maintain buoyancy by regulating gas levels.
