The answer is A- sperm and egg. gametes are reproductive cells in mammals, so sperm and egg would be the correct.
Answer:
Answer is C.
Explanation:
A. The vessel length is pretty much constant. The body can't length or shorten blood vessels.
B. Blood viscosity is also fairly constant because the composition of blood cannot change quickly enough to change resistance as needed.
C. This is the main way resistance is controlled. The smooth muscle surrounding blood vessels can rapidly respond to hormonal or metabolic stimuli and contract/relax to adjust diameter.
D. Again, temperature is fairly constant in the body and would not be a good way to alter resistance.
Answer:
c. Acclimatization
Explanation:
Acclimatization is the process in which an individual adjusted itself in order to respond adequately to a change in its environmentm- in this case, the change from sea water to freshwater- and maintain good performance. Acclimatization occurs in a short period of time and <em>within the organism's </em><em>lifetime </em><em>. </em>This last part is an important difference between acclimatization and adaptation, becasue an adaptation is a change that has taken place over many generations.
Geology, Meteorology, Oceanography, and Astronomy<span />
Answer:
Answer: More humans consume more freshwater, more land, more clothing, etc. The more people on the planet, the more food you need to feed those humans. Which can also cause more deforestation to create more space.
