Agroup of species that have similar characteristics is called
a. an order
b. a family
c. a phylum
d. a genus

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

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