When the cell concentrates potassium within, against the natural tendency of matter, it is performing active transport.
Answer:
Spotted Eagle Rays have two sets of five gills on each side of their body on the ventral side. In order to breathe, A. narinari must be in continuous swimming motion so that oxygen can be absorbed from the water passing through the gills
Explanation:
Answer:
I'm pretty sure the answer is B
Explanation:
Answer:
D). genetic drift
Explanation:
Genetic drift is the change in an allele frequency over a period of time. This event has to be random and a chance event.
For example: In a population of a flowering plant there are two types of flowers, blue and yellow. Due to a fire many yellow flowers are destroyed by chance. Now the resultant population will have more blue flowers and when they reproduce the population will eventually evolve to have more blue flowers. Effect of genetic variation is more pronounced in a small population since its easy to disturb the allele frequency.
Answer:
Answer is the hierarchy of needs.
Explanation:
This theory comprises of a five-tier model of human needs. Its levels are physiological, safety, love, esteem and self-actualization as arranged from the bottom to the top.
