Agood model of the cell would be, a: a chain link fence b: a film of food wrap c: a wall of stones and mortar d: a river with objects floating in it

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous

Some plants have reproductive structures that them reproduce using natural forces or animals. how does the reproductive structure shown here ensure the reproductive success of plants?