You are studying two species of tree frog. The two species are found on two different islands, separated by 200 km of ocean water. Species A lives on very light-colored rocks and species B lives on dark-colored trees. Which process is most unlikely to be affecting allele frequencies in the population?
a. Gene flow between populations
b. Genetic drift
c. Natural selection
d. Mutation rates
Answer:
a. Gene flow between populations
Explanation:
Gene flow between two populations occurs when one or a few members of one population migrate into the other and interbreed in the new population. This process adds some new alleles to the new population. In the given example, two populations of a tree frog are separated by 200 km of ocean water. Therefore, the frogs of one population would not be able to migrate into the other population and interbreed. So, gene flow can not affect the allele frequencies of these two populations.
Phloem sap contains water and sugars
Just because ONE chimpanzee used tools, doesn't mean ALL chimpanzees use tools. You need to observe way more than one chimpanzee to conclude that they ALL do that thing. For example, if I saw one monkey eating honey, I can't conclude that ALL monkeys eat honey.
The nurse understands that it attributes to the decrease in the physiological function of major organs.
Acute pancreatitis affects people of all ages, but the mortality rate associated with acute pancreatitis increases with advancing age. The pattern of complications changes with age. Younger patients tend to develop local complications; the incidence of multiple organ failure increases with age; possibly as a result of progressive decreases in physiologic function of major organs with increasing age.
Golgi apparatus is an organelle in eukaryotic cells that stores and modifies proteins for specific functions and prepares them for transport to other parts of the cell.
Its usually near the cell nucleus and consists of a stack of flattened sacs.
