How to understand the difference from active transport and passive transport?

This is my last question for the day. What is the secondary consumer in this energy pyramid? A. snakes B. grasshoppers C. mice D. grasses E. none of the above

Service refers to the physical location where health care is provided to patients

How many stars are in our solar system?

The molecular and structural similarities observed among these organisms is best explained by which of the following? A. genetic mutations B. binary fission C. natural selection D. human impact

Another name for the ___, is windpipe

Which best describes the purpose of a controlled experiment? A. to make sure the results of the experiment support the hypothesis B. to prevent a dangerous condition resulting from a reaction C.

Bones, joints, ligaments, and cartilage are parts of the a) refrigerator b) muscles c) skeleton

Chloroplasts cannot move on their own. How do they move around the cell?

What causes leaves to dry out

And increase in food and a decrease in predators would most likely