It is not C. I got it wrong. It is A water!
Answer:
a. human body systems interact with each other to perform life functions
Explanation:
The digestive system like all other organ systems relies on other organ systems working efficiently for it to work. For example the food digested by the digestive system is transported around the body by the circulatory system. Moreover enzymes and hormones needed by the digestive system are transported to target cells through blood
Beak of birds change according to their climate and other conditions in their surroundings as the birds adapt to them.
Explanation:
The beak of the bird is the source from which it catches its prey so it is important for the survival of the bird that the beak remains effective for the use.
The competition from other species of birds may often trigger development in beaks for better suitability to the climate to become more effective than other species.
This happens through the process of adaptation as the birds adapt to their environment and then pass their genes down to their next generation through their inheritance in lineage.
Why are these organisms by the deep sea vents?
Answer: B. Level 1
Explanation:
The prairie community is dominated by the grass and vegetation cover. Thus the lower most trophic level in the prairie ecosystem are the short and tall grasses. They produce major source of biomass for the herbivores of the food chain. They consume the grasses can be designated as primary consumers of the food chain. Also the producers which are grasses which make up the large amount of biomass will provide a source of food for the consumers. They will receive 100 percent energy from the sun and they will utilize 90 percent of it to make their food by the process of photosynthesis. Only ten percent of energy is transferred to the next trophic level.
