How has biodiversity on earth changed over time?

How does the contractile vacuole in a single-celled organism function to maintain homeostasis? A) It pumps water into the cell. B) It pumps water out of the cell. C) It pumps solutes into the cell. D) It pumps solutes out of the cell.

2. The form of oxygen that combines three oxygen atoms into each molecule is called?

What are three factors that affect climate

some species of bacteria that live at the surface of sediment on teh bottom of lakes are capable of using either glycolysis plus fermentation or cellular respiration to generate ATP.

The process in which a double stranded dna molecule unwinds, separates, and each strand serves as a template in the synthesis of its complement

What did Darwin notice about the different animals on the gala Pagosa islands

A group of students went on a forest trail as part of their project activity. They were given a task of calculating the NPP of a particular forest area they chose.

Here is a food chain in a meadow. Use this food chain to answer this question. Which is the herbivore in this food chain? A. corn snake B. field mouse C. grass D. hawk

The maintenance of constant internal conditions in an organism is known for?

In multicellular organisms, specialized cells perform specialized functions. Which of the following cells is specialized for engulfing foreign material?