Which of the following food chains will allow the most energy to be available for human use?
a. corn ? cow ?humans
b. corn ?humans
c. algae?minnows?fish?humans
d. alfalfa?cow?milk?humans
e. corn?hen?eggs?humans
B; Whenever energy flows from one trophic level to another energy is lost to the system. Therefore, the most energy will be available to humans if they eat producer and minimize energy transfer.
Integrate and Apply What You've Learned (Short Answer)
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Which of the following relationships about nucleotide composition in DNA is TRUE?
A. C+G=A+T B. C+A=G+T C. C=A D. G=T E. C=T
The molecule in the accompanying figure is glyceraldehyde, an example of a ____ sugar
a. triose b. hexose c. pentose d. heptose e. tetrose
Which of the following organisms would NOT be classified as consumers in a food chain?
a. bees b. deer c. blueberry bushes d. wolves e. humans
A packet of light energy is called a
A) quantum. B) pigment. C) photon. D) phaser.