Select the true statement(s) concerning natural selection.
_____ Natural selection is a way for evolution to occur.
_____ Natural selection results in better adapted populations when the environment is constant.
_____ Natural selection does not act on individuals.
_____ Natural selection is evolution.
__X__ Natural selection is a way for evolution to occur.
__X__ Natural selection results in better adapted populations when the environment is constant.
_____ Natural selection does not act on individuals.
_____ Natural selection is evolution.
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A photographic representation of the chromosomes of an organism is called a(n) _______
A. allele variation B. chromosomal spreading C. chromosome picture D. karyotype
pH is a measure of the number of _____ in a fluid
1.covalent bonds 2.hydrogen ions 3.calcium ions 4.water molecules
Wetlands and floodplains control flooding by
A. temporarily storing water. B. diverting water to other drainage basins. C. evaporating most of the water. D. helping rain flow faster into rivers. E. Wetlands and floodplains control flooding by all of the above methods.
Which of the following polypeptide chains would be sequenced from the mRNA code AGG-GAG-CCC?
A. serine - aspartate - proline B. arginine - glutamate - alanine C. serine - leucine - proline D. arginine - glutamate - proline