The xylem of angiosperms is composed of ____ , allowing these plants to thrive in tropical climates and have high rates of photosynthesis. Gymnosperms are successful in cold climates as their xylem is composed of ____, which reduce the risk of cavitation

Fill in the blank with the appropriate word.


vessels, tracheids

Biology & Microbiology

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We use energy in many ways. What is one thing we cannot do to energy?

A. Convert it. B. Waste it. C. Store it. D. Destroy it.

Biology & Microbiology

A couple conceives at the beginning of January. During which month will their child be undergoing organogenesis?  

A.  January B.  February C.  March D.  April 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 organogenesis? 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?

Biology & Microbiology

Animals in which the anus develops before the mouth in the embryo are

A. coelenterates. B. protostomes. C. deuterostomes. D. coelomic.

Biology & Microbiology

A(n) __________ is an area where all precipitation drains into a specific waterway, then on to groundwater, which becomes a source of water for plants.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology