The first plants to produce seeds evolved during the:a
Mesozoic era.
b. Devonian period.
c. Cenozoic era.
d. Jurassic period.
e. Cretaceous period.
B
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Why is a rhizoid not considered a true root?
A. Rhizoids lack the capacity to anchor mosses into the substrate. B. Rhizoids are not capable of absorbing water. C. True roots have mycorrhizal fungi. D. Rhizoids lack xylem tissue. E. Only true roots are capable of nitrogen fixation. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about true roots and rhizoids? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Temperate deciduous forests generally have ____ annual precipitation levels and ____ temperatures than boreal forests
a. higher; higher b. the same; lower c. the same; higher d. lower; lower e. lower; the same
A cell releasing waste into the extracellular environment would be an example of which of the following?
a. phagocytosis b. pinocytosis c. receptor-mediated endocytosis d. exocytosis
Which group of algae seems to straddle the boundary between algae and protozoans?
A) Euglenozoa B) Rhodophyceae C) Alveolata