Answer:
D, E, and F
Explanation:
The requirements for counter current exchange are gills, bulk flow of blood and water and air and the blood pigment. Also, the fluids should flow in close proximity and flow in the opposite directions.
Answer AND Explanation:
Predation and parasitism both involve one organism benefiting at the expense of the other. The difference is that predation is when the organism gets captured and eaten while parasitism is when the host gets harmed by the parasite.
Predation involves killing of the prey while parasitism does not necessarily involve killing since the parasite can live temporarily or permanently in the host or on the host.
Answer:
Uneven heating
Explanation:
Uneven heating I believe because change in pressure is caused by changes in air density, and air density is related to temperature. warm air is less dense than cooler air
