Green and yellow wavelengths of light are useless to most plants.

a. true
b. false


a. true

Biology & Microbiology

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If all variation among individuals in a population is due to differing genotypes, heritability is ____, and the slope of the line used to measure it is ____

A. 100%; 0.5 B. 100%; 1 C. 50%; 0.5 D. 50%; 1 E. 0%; 0

Biology & Microbiology

Chloroplasts contain disklike membranous sacs arranged in stacks called

A) stroma. B) grana. C) thylakoids. D) vacuoles. E) cristae.

Biology & Microbiology

Vascular plants appeared about 450 million year ago. Vascular plants have existed on earth for ______.  

A.  10% of its history B.  20% of its history C.  50% of its history D.  75% of its history E.  90% of its history 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 the age of the earth?   Choose Answer · Given what you now know, what information and/or problem solving approach 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

The hosts for the causative agent of cholera

between El Niño Southern Oscillations are a. humans. b. algae. c. copepods. d. shellfish. e. marine worms

Biology & Microbiology