Not a hormone.

a- adrenaline
b- cortisol
c- estrogen
d- blood sugar

Which of the following lines of evidence would best support your assertion that a particular plant is an angiosperm? a) it produces seeds. b) it retains its fertilized egg within its archaegonium. c) it lacks gametangia. d) it undergoes alternation of generations.

During the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?