How has the human population changed over time? A. It has slowly decreased
B. It has slowly increased
C. In recent years it has exponentially increased
D. It has remained the same for thousands of years

answer; i believe the correct answer is (anemia);

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.

the tricuspid valve is present between right atrium and right ventricle

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.