While examining the leaves of an Elodea (a popular water plant) under a microscope, the large green chloroplasts can be seen streaming through the cells as if pushed by a water current. What junction might be the source of this cytoplasmic streaming in the Elodea leaves?
a. desmosome
b. tight junction
c. plasmodesmata
d. gap junction
c. plasmodesmata
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Why might a phylogeny based only on molecular data show a different pattern of relationships than a phylogeny of the same taxa that is based only on morphological traits?
What will be an ideal response?
A researcher brings a sample of dry soil to the lab, wets it, provides ample amounts of fertilizer, and places the soil in a container in a greenhouse. Which type of plant would be least likely to emerge?
A. Pine seedling B. Sunflower C. Corn D. Wheat E. Liverwort 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 plant propagation? 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?
The active site of DNA polymerase is similar in ____
a. archaea and bacteria only b. archaea, bacteria, and eukaryotes c. archaea and eukaryotes only d. none of these groups e. bacteria and eukaryotes only
The connection between structure and ________ is a basic concept of biology
A) species B) adaptation C) function D) sex