Textbook QuestionIn this abbreviated diagram, identify the four major plant groups and the key terrestrial adaptation associated with each of the three major branch points. 632views
Textbook QuestionIdentify the cloud seen in each photograph. Describe the life cycle events associated with each cloud. 462views
Textbook QuestionWhat is a pollen grain? a. male gametophyte b. female gametophyte c. male sporophyte d. sperm1087views
Multiple ChoiceThe development of the __________ prevents plants from drying out and protects them from microbes. 549views2rank
Multiple ChoiceWhich of the following homologies is/are shared by land plants and their closest living algal relatives? 679views
Multiple ChoiceIn moving to land, which of the following challenges did plants have to overcome? 594views
Multiple ChoiceWhich is a key difference between alternation of generations in plants and sexual reproduction in nonplant organisms? 1547views
Multiple ChoiceA major division in plant systematics is based on whether a particular species has __________. 517views
Multiple ChoiceWhat structures allow plants to readily take up carbon dioxide from the atmosphere? 645views
Multiple ChoiceFerns and mosses are limited mostly to moist environments because __________. 848views