Answer:
active immunity
Explanation:
Active immunity is the form of acquired immunity in which the body produces its own antibodies against infections. When infectected by a bacterial infection that had happened before, one will not become seriously ill. This is because memory cells are able to recognise the antigens and stimulate the immune system to produce antibodies against the pathogens.
The answer would be: cooperative interactions between the termites and the protozoa allow termites to extract <span>energy from wood to survive
The experiment shows that the termites lost the ability to digest wood when the protozoa that live in their gut is eliminated. The ability to digest wood will be back after the termites eat feces that contaminated with the same protozoa.
This shows that the protozoa have a symbiosis with the termite that gives the ability to digest the wood.</span>
Answer: They adapted to the enviroment and are ment to grow in cold weather rather than warm.
Explanation:
Answer:
When threatened by wolves, deer don't graze as much and move around more, aerating the soil.
Explanation:
This is due to the inefficiencies of passing energy from one energy level to the next. Studies have shown that only 10% of energy is passed from a lower trophic level to the next higher level as biomass. The rest is lost in inefficiencies such as heat. This is why the graphical model of energy flow in a community is shaped like a pyramid with the lowest energy levels at the bottom and highest energy levels at the top.