The answer is an overhunting.
<span>The bottleneck event means drastic reduction of the population size because of environment changes. The consequence of this is the reduction of genetic variation. The bison population is a good example of the population bottleneck. The bison population drastically reduced its size due to overhunting which culminated at the end of the 19th century, when bisons almost extinct. </span>
The mesosphere is the coldest layer of the atmosphere.
Hope that helped you.
Answer:
c. made up of 20 different amino acids.
Explanation:
Protein are macromolecules which have long chains of amino acids and they are used in the production of enzymes and aids metabolic activities of the body such as in the repair of worn out tissues and building up of muscle mass.
Protein is unique as it contains about 20 different amino acids. Carbohydrates also have Oxygen present in their compound. Calcium is the mineral responsible for building up of bones and teeth.
I'd go with this one: b.) Meiosis I separates tetrads, and meiosis II separates sister chromatids. As it is correctly describes the difference between meiosis I and meiosis II.
We may lead to a presupposition that the researcher based its analysis on the environmental habitats of the organisms, moreover it can also be the almost identical but different morphological or physiological structures. There are many ways to classify an animal or base an animal, morphology, embryology, DNA and others.
