Osmoregulation is the control of
a. the internal environment.
b. temperature.
c. metabolic wastes.
d. water and ion balance.
e. hyperthermia.
D
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Which of the following diseases are caused by an ascomycete? Check all that apply.
_____ apple scab _____ wheat rust _____ powdery mildew _____ chestnut blight _____ Dutch elm disease
In the lysogenic cycle _____.
a) host DNA is destroyed and viral DNA is replicated b) a bacterium replicates without passing viral DNA to its daughter cells c) viral DNA is destroyed and host DNA is replicated d) a bacterium divides once before the lytic cycle is initiated e) viral DNA is replicated along with host DNA
The total length of the cell cycle of cells in a cell culture is 24 hours. M phase is found to be 1 hour, S phase is found to be 9 hours and G2 is found to be 4.5 hours. How long is G1?
a) 24 hours b) 9.5 hours c) 9 hours d) 1 hour e) 4.5 hours
Which were the first tetrapods to move to land?
A) Reptiles B) Ray-finned fishes C) Monotremes D) Hagfishes E) Amphibians