Chapter 27, Problem 5
What does it mean to say that a life cycle is gametophyte dominant versus sporophyte dominant?
Video transcript
The appearance of cuticle and stomata correlated with what event in the evolution of green plants? a. the first upright growth forms b. the first woody tissues c. growth on land d. the evolution of the first water-conducting tissues
What is a pollen grain?
a. sperm-producing gametophyte
b. egg-producing gametophyte
c. sperm-producing sporophyte
d. sperm
Evaluate the following statements regarding seeds. Select True or False for each statement. T/F They contain an embryo. T/F They contain nutritive tissue for the embryo. T/F They consist entirely of diploid cells. T/F They are also referred to as spores.
Soils, water, and the atmosphere are major components of the abiotic (nonliving) environment. Describe how green plants affect the abiotic environment in ways that are advantageous to humans.
The evolution of cuticle presented plants with a challenge that threatened their ability to live on land. Describe this challenge, and explain why stomata represent a solution. Compare and contrast stomata with the pores found in liverworts.
Explain the difference between homosporous and heterosporous plants. Where are the microsporangium and megasporangium found in a tulip? What happens to the spores that are produced by these structures?