The zygote is
a. diploid.
b. tetraploid.
c. polyploid.
d. triploid.
e. haploid.
A
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Which description best describes the cell wall of a Gram-positive bacteria?
A. It is composed of a thick inner layer of peptidoglycan and a double layer of plasma membrane on the outside. B. It is composed of a single plasma membrane and a thick outer layer of peptidoglycan. C. It is composed of a single plasma membrane and a thin outer layer of cellulose. D. It is composed of a double layer in the plasma membrane and a thin outer layer of peptidoglycan. E. It is composed of a single plasma membrane and a thin outer layer of peptidoglycan.
Which organisms would MOST likely be isolated from aerobic growth conditions with acetate and a soil sample heated to 80 °C for 10 min?
A) aerobic or facultative anaerobic acetogens B) endospore-forming bacteria C) hyperthermophilic heterotrophic bacteria D) mycoplasmas
Which whale is not a rorqual?
a. blue whale b. fin whale c. humpback whale d. right whale e. killer whale
Ram ventilation is used by _____ during respiration.
A. salamanders B. frogs C. penguins D. whales E. tuna