Which is not a way that angiosperms are useful to people?
as a source of medicine
as a major source of fertilizer
as a source of food
as a source of clothing
as a major source of fertilizer
.
What characteristic do gymnosperms share?
They live only in hot, dry climates.
They have broad leaves with veins.
They produce seeds that are naked.
They are trees that grow flowers.
They produce seeds that are naked.
Which speeds up the growth of a plant?
auxin
gravity
touch
darkness
Auxin
Which group of gymnosperms contains only one species?
cycads
ginkgoes
conifers
gnetophytes