Why would the evolution of a better eye be a disadvantage for a mole?
What will be an ideal response?
Since a mole does not need good eyesight for its everyday tasks, inheriting the mutations required to produce a better eye would wind up using up precious energy that could best be spent for other endeavors that the mole needs to compete and survive.
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Molecular motors associated with the cytoskeleton allow molecules to move through the cell faster than the speed of diffusion
A. true B. false
A hectare of wheat fixes 32,000 kg of carbon per year through photosynthesis and uses 7,000 kg of carbon per year for cellular respiration. The net primary productivity of the wheat field is therefore _____ kg of carbon/hectare/year.
Fill in the blank(s) with the appropriate word(s).
In the above figure which of the following is true?
a. Enough change in the dark blue phenotype is seen to suggest that the population is evolving. b. The light color phenotype is being selected for by songbird predation. c. Differential reproductive rate is having an effect on evolution. d. There is no evidence to support observable evolution within this population. e. All of these are true.
Which type of DNA makes up the smallest portion of the human genome?
A) introns B) unique noncoding DNA C) exons D) tandemly repeated DNA E) interspersed repeated DNA