Vertebrates have an endocrine system of glands that secrete

a
hormones
b
enzymes
c
proteins
d
none of the above

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Which blood cell spend most of their time in the lymphatic system?

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.