Mosses, liverworts, and hornworts do not reach a large size becausea. they lack chlorophyll.b. they do not have specialized vascular tissue to transport water very high.c. photosynthesis does not take place at a very fast rate.d. alternation of generations does not allow the plants to grow very tall before reproduction.

The gametophyte is the dominant stage in the life cycle for which of the following plant groups?   A. ferns   B. horsetails   C. liverworts   D. whisk ferns   E. club moss

A study team investigated stomatal density of different species of leaves. The data they collected are shown in the table. Which of the following identifies the type of environment in which the Eurasian watermilfoil (Myriophyllum spicatum) evolved? Species Eurasian Watermilfoil (Myriophyllum spicatum) Giant Salvinia (Salvinia molesta) American aspens (Populus tremuloides) Stomatal Density (stomata/mm²) Upper epidermis 0 36 0 Stomatal Density (stomata/mm²) Lower epidermis 0 0 74

In deeper ocean depths, red algae have photosynthetic pigments that absorb the blue and violet wavelengths of light that penetrate the oceans. These algae are in division/phylum   a. Zygomycota. b. Phaeophyta. c. Chlorophyta. d. Rhodophyta. e. Bryophyta.