What organisms are susceptible to being smothered by a coating of oil in sediments?
a. Fish
b. Invertebrates
c. Birds
d. Marine mammals
b
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The monomers of DNA, called ________, are composed of ________
a. amino acids / carbon, hydrogen, oxygen, and nitrogen b. monosaccharides / carbon, hydrogen, and oxygen c. nucleosides / base and sugar d. nucleotides / base, sugar, and phosphate
Hominins evolved when the climate was ____
a. wet and hotter b. wet and cooler c. dry and hotter d. dry and cooler e. similar to today
Which disease may produce a malformed embryo if the mother develops the disease early in pregnancy?
a. rubella (German measles) b. chicken pox c. red measles
d. hepatitis e. mumps
The future of GM organisms is encouraging. A project is underway to produce a GM chicken that is incapable of ________
A) reproducing but containing twice as much breast meat B) spreading avian influenza C) regulating the number of eggs laid D) contracting avian influenza