BIO 1500 EXAM SET QUESTIONS AND
ANSWERS
T/F Even animals without true kidneys can osmoregulate. - ANSWER-TRUE
T/F The Hardy-Weinberg equation (p2+2pq+q2= 1) describes the observed genotype
frequencies in an evolving population of organisms. - ANSWER-FALSE ( H-W equilibrium
states genotype frequencies in a population will remain constant from generation to
generation in the absence of other evolutionary influences)
T/F Genetically identical twins can look different from each other. - ANSWER-TRUE
T/F Mutations in functional genes always cause amino acid changes - ANSWER-FALSE
T/F Living dinosaurs (e.g., crocodiles, horseshoe crabs) remain unchanged because they
are not evolving. - ANSWER-FALSE
T/F All tetrapod lungs function the same way - ANSWER-FALSE
T/F Mendel's laws are important at the population level. - ANSWER-TRUE
The rate of oxygen exchange is optimized by the mammalian lung because of: -
ANSWER-Greater oxygen pressure inside the lung relative to that within the blood
Freshwater fishes use their gills to: - ANSWER-Actively import salt (e.g., sodium and
chloride ions) into their bodies.
Osmosis results from the movement of: - ANSWER-c) Water
Which of the following would have an effect on the amount of oxygen bound to red blood
cells? - ANSWER-temperature of their blood
pH of their blood
elevation where they lived
Which of the following would affect the ability of individual red blood cells to bind oxygen?
- ANSWER-Amount of carbonic acid (H2CO3)
What kind of fish do not regulate their water and salt concentrations relative to their
environments? - ANSWER-Cartilaginous fishes
countercurrent exchange works in a fish gill lamellae
to enhance respiratory exchange over concurrent exchange, taking advantage of -
ANSWER-Improved pressure differential
Heart muscle contraction requires stimulation by
the: - ANSWER-Sinoatrial node (pacemaker)
What would NOT act as a form of premating reproductive isolation? - ANSWER-
Developmental abnormalities of hybrid progeny
Progeny - ANSWER-children/ other descendants
ANSWERS
T/F Even animals without true kidneys can osmoregulate. - ANSWER-TRUE
T/F The Hardy-Weinberg equation (p2+2pq+q2= 1) describes the observed genotype
frequencies in an evolving population of organisms. - ANSWER-FALSE ( H-W equilibrium
states genotype frequencies in a population will remain constant from generation to
generation in the absence of other evolutionary influences)
T/F Genetically identical twins can look different from each other. - ANSWER-TRUE
T/F Mutations in functional genes always cause amino acid changes - ANSWER-FALSE
T/F Living dinosaurs (e.g., crocodiles, horseshoe crabs) remain unchanged because they
are not evolving. - ANSWER-FALSE
T/F All tetrapod lungs function the same way - ANSWER-FALSE
T/F Mendel's laws are important at the population level. - ANSWER-TRUE
The rate of oxygen exchange is optimized by the mammalian lung because of: -
ANSWER-Greater oxygen pressure inside the lung relative to that within the blood
Freshwater fishes use their gills to: - ANSWER-Actively import salt (e.g., sodium and
chloride ions) into their bodies.
Osmosis results from the movement of: - ANSWER-c) Water
Which of the following would have an effect on the amount of oxygen bound to red blood
cells? - ANSWER-temperature of their blood
pH of their blood
elevation where they lived
Which of the following would affect the ability of individual red blood cells to bind oxygen?
- ANSWER-Amount of carbonic acid (H2CO3)
What kind of fish do not regulate their water and salt concentrations relative to their
environments? - ANSWER-Cartilaginous fishes
countercurrent exchange works in a fish gill lamellae
to enhance respiratory exchange over concurrent exchange, taking advantage of -
ANSWER-Improved pressure differential
Heart muscle contraction requires stimulation by
the: - ANSWER-Sinoatrial node (pacemaker)
What would NOT act as a form of premating reproductive isolation? - ANSWER-
Developmental abnormalities of hybrid progeny
Progeny - ANSWER-children/ other descendants
