Which of the below statements is true regarding the movement of carbon between organisms in a food web, and the transfer of energy between organisms in different trophic levels (select all that apply)?
A. Both energy and carbon can be
continuously cycled.
B. Neither energy nor carbon can be
continuously cycled.
C. Energy can be continuously cycled, but
carbon cannot.
D. Carbon can be continuously cycled, but
energy cannot.
D
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On average, humans differ by _____________________% of their genomic sequences
Fill in the blank(s) with correct word
Which of the following is NOT a characteristic of a morphogen?
A. a morphogen will only elicit effects in areas where it is at a high enough concentration B. morphogens can be distributed asymmetrically throughout a cell C. morphogens can be secreted to act on neighboring cells D. morphogens can cause cell death E. morphogen gradients are always established in the oocyte
passive transport requires metabolic energy
a. true b. false
A holoenzyme is composed of an apoenzyme one or more (cofactors/inhibitors/substrates).
Fill in the blank(s) with the appropriate word(s).