science

the tough outer coverng of a plant cell is its:

• cytoplasm

• cell wall

• chloroplast

• cell

tissues work together in a :

• nucleus

• vacuole

• organ

• cell wall

explain what cellular respiration is and where it occurs

similar cells working together make up a

an_______ stores food or water in a cell

animal cells are surrounded by :

• cell membrane

• tissue

• cell wall

• organ