Answer:
(A) speciation.
Explanation:
Shrinking of water bodies and development of deserts since the Pleistocene ice age produced new vacant niches that could be inhabited by organisms such as fishes. Production of new isolated streams, ponds, and springs allowed the fishes to occupy these new water bodies. Accumulation of genetic variations to become adapted to their new habitat resulted in the evolution of several new species of fishes with many different genetic traits. This represents speciation due to geographical isolation.
Answer:
c. Each key is organized as a flowchart.
Explanation:
A dichotomous key is a device that enables users to recognise natural world objects, such as wildflowers, trees, reptiles, mammals, fish and rocks. it used for the Identification whereby groups of species are frequently divided into two categories with increasing sequential division, more information on the basic characteristics of a particular organism is released.
Dichotomous keys are represented in two ways including either as descriptive representation in which a series of paired statements arraged in a numbered sequence or as a branching flowchart (diagrammatic representation)
.
Hence, the correct option is c.
Answer: I would go with A
Explanation: The part of DNA that is used to produce proteins are called ‘Amino Acids’ and they are nitrogen based.
When a iologist adds a vitamin solution to an enzyme/Substrate solution that requires co-factors the reaction will typically take longer to begin, but not much.
The answer is D. That is the answer because the number of proteins changes based on the temperature (independent variable). Amount of proteins is dependent on the temperature.
