A freshwater fish would be expected to __________.
a. pump salt out through salt glands in the gills
b. produce copious quantities of dilute urine
c. excrete urea across the epithelium of the gills
d. have scales that reduce water loss
Answer: b. produce copious quantities of dilute urine
You might also like to view...
Natural killer cells destroy target cells by releasing ____
a. antibiotics, which breakdown the target cell’s membrane b. perforin, which creates holes in the target cell’s membrane c. histamine, which signals other blood cells to aggregate d. lysozyme, which breaks down the bacterium’s cell wall e. antibodies, which break down the bacterium’s cell wall
Do SS Also Help Aphids?
What will be an ideal response?
Blood pressure depends on:
a. the height and weight of an individual. b. atrial volume and stroke rate. c. blood flow and resistance of blood against the vessel walls. d. total blood volume. e. diastole and systole
The recessive allele of a gene causes cystic fibrosis. For this gene among Caucasians, p = 0.98. If a Caucasian population is in Hardy-Weinberg equilibrium with respect to this gene, what proportion of babies is born homozygous recessive and therefore suffers cystic fibrosis?
A) (0.02)2 = 0.0004 B) 0.02 C) (0.98)2 = 0.9604 D) 2(0.02 × 0.98)= 0.0392