Which statement best describes a cell membrane?

(1) It is found only in animal cells.

(2) It is a nonliving structure.

(3) It controls reproduction in a cell.

(4) It controls the passage of materials into

the cell.

Where can cells that are able to differentiate be found?

How do substances change after a chemical reaction? A. They change phase B. They lose mass C. Their atoms are rearranged D. Their atoms lose electons

How many plant species are in the California Floristic Province? a. 6000 b. 7000 c. 8000 d. 9000

Sort each description by the type of rna it describes. drag each item to the appropriate bin

Which has a stronger force of gravity with the sun Earth or Mercury

The roads in northern states (like Michigan) need to be repaired more often than roads in southern states (like South Carolina). Explain the effects mechanical weathering could have on this?

A substance that form hydrogen ions when dissolved in water is called a?

A red and white snapdragon are crossed, and their offspring is pink. This is an example of

Around the Salt Lake, what is the geologic age of the area and what type of geologic unit is found there?

The cell walls of fungi differ from those of plants and protists because the cell walls of fungi O A. are composed of cellulose. O B. are composed of peptidoglycan. C. are composed of chitin. D. contain chlorophyll.