Answer:
Fertilization? I think this is correct. Sorry if not
Explanation:
I believe it's because they don't have chloroplasts
Answer:
Upwelling bring up nutrients (deep sea water is rich in nutrients), this supports the growth of plankton and seaweed. This then provides food for fish, marine mammals, and birds.
Answer:
4900 J
Explanation:
Potential energy is the product of the mass, gravitational constant and the height of the object.
U=mgh=10 kg×9.8 m s^(-2)×50 m=4900 J
So, the potential energy of the object is 4900 J.
The answer is macrophages. They either actively invade these leukocytes or are phagocytosed, divide in the cells and cause lysis. The promastigotes that invade these leucocytes are transformed into amastigotes in the macrophages. These amastigotes continue attacking other healthy macrophages while others migrate to the mid gut.