Amino acids that cannot be manufactured by the human body are called ____________________

Fill in the blank(s) with correct word


essential amino acids
essential

Biology & Microbiology

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In genetic mapping, a map unit is defined as:

A. the distance between two genes. B. 1 millimeter. C. 1 micrometer. D. the distance between genes resulting in 1% recombination. E. the distance between genes resulting in 50% recombination.

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

In the Calvin cycle of photosynthesis, carbon dioxide molecules are reduced by the addition of electrons carried from the light reactions by rev: 01_29_2015_QC_

A. water. B. oxygen. C. NADP+. D. ATP. E. NADPH.

Biology & Microbiology

Which of the following statements is

CORRECT?

a. A solvent will diffuse from a hypotonic solution to a hypertonic solution. b. A solvent will diffuse from a hypertonic solution to a hypotonic solution. c. The concentration of the solute is greater in a hypotonic solution than in a hypertonic solution. d. A solvent will experience net flow between two isotonic solutions. e. Osmosis only occurs when both solutions separated by a membrane are hypertonic.

Biology & Microbiology