1. What are the four key environmental limitations to plant
growth, considered at global-
scale?
2. What are the major environmental factors that influence
decomposition rates in
ecosystems?
3. Stomata are first seen in plant fossils from about 420 million
year ago (Mya). List one
advantage and one disadvantage of stomata.
4. Cuticles are first seen in plant fossils from about 450 million
year ago (Mya). List one
advantage and one disadvantage of cuticles.
5. An important evolutionary advance seen...