Answer:
Even after an infection is over, your immune system continues to make antibodies. Once you test positive for the bacteria, your blood will continue to test positive for months or years even after the bacteria are no longer present.
Explanation:
using brain
Answer:
cell theory
Explanation:
cells are the basic unit of structure in organism
Answer:
Option A. Oxpecker birds eat parasitic ticks off the backs of zebras, is the correct statement for Mutualism.
Explanation:
Oxpecker birds is a special type of bird which feed on the parasites that are present on the surface of zebra. These parasites causes harm to the zebra. Oxpecker birds free the zebra from the parasite while the zebra provides food to the oxpecker bird and both get benefit from each other. So it is Mutualism relationship.
Option D. A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat, is a type of parasitism relationship.
Answer:
In my opinion ans :;because they release oxygen to atmosphere ,they absorb carbondioxide and regulate water cycle
