Answer:
(1) as organic molecules in living and dead organisms found in the biosphere; (2) as the gas carbon dioxide in the atmosphere
Explanation:
Because the flu would get other people sick
B. To explain how things work
The niche of grasshopper would include the plant species it eats.
Explanation:
The niche of an organism is different to that of a habitat. A niche includes the interaction between organisms and the food that they eat, whereas, a habitat is a place where organisms are provided with food, protection and shelter.
Habitat is a place of ecosystem that involves other environmental factors like- rain, sunlight, humidity etc. So, food type eaten by grasshopper would be the description of a niche and not a habitat.
Explanation:
under what circumstance does a negative cell presents An antigen to another negative cell
