3. what adaptation of land plants it to control gas exchange with the atmosphere?
a. chitin
b. cuticle
c. stomata
d. chlorophyll

4. a plant that remains low to the ground and grows in moist conditions is most likely what type of plant?
a. vascular
b. nonvascular
c. angiosperm
d. gymnosperm

5. terrestrial plants contain lignin to support the plant and vascular tissue to transport water and nutrients through the plant. what are these adaptations in response to?
a. heat
b. gravity
c. dryness
d. gas exchange

3) C. Stomata, as I explained in my previous answer.

4) B. Nonvascular, low-hanging plants living in moist environs don't have to fight gravity nearly as much as tall ones do. So they needn't highly developed vessels to transport to their tips

5) B. Gravity, see above. The higher trees/plants grew, the further their apical structures were from ground water sources, so the lignin-supported, strong vascular tissue (phloem) allows the transport of water against gravity, using a capillary method (benefiting from the adhesive effect of water molecules).

The answer to this is b