1) C. Gymnosperms are mostly adapted for wind pollination; angiosperms are mostly adapted for animal pollination. This is the best answer, because the others had the two types reversed. Gymnos have "naked" seeded cones, whereas Angios have seeds protected by fruit. Therefore the Angios relies on animals to eat the fruit and to pollinate, whereas Gymnos relied on wind to pollinate the ground. Gymnos came first on Earth and Angios developed later.
2) C. Cuticle. This is a waxy coating helping to keep water in. The main water losses are via stomata.
3) C. Stomata
4) B. Nonvascular
5) B. Gravity
These answers were explained in the questions that I just answered before. So refer to those for explanations.
Answer:
that's true with primary succession
C. 7
protons + neutrons = mass number
