Scientists studying the xylem and phloem in a plant often compare them to the heart and blood vessels in an animal because both are Select one:

A: the main sites of cellular respiration in the organism.

B: used to transport carbon dioxide waste out of the organism.

C: specialized structures that transport materials.

D: tissues that carry blood throughout the organism.

a is the answer

explanation:

which statement about trans-fatty acids is false?

a. the conversion of cis-fatty acids to trans-fatty acids is inhibited by the presence of antioxidants.

hope this

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates