Treatment Resistant STI Quiz 2

A   Humans have provided the selection pressure that results in more harmful strains of bacteria. 

B   It takes decades or longer for organisms to evolve by natural selection.

C   Resistance alleles in the bacterial populations in the human body are in Hardy-Weinberg equilibrium.

D   Bacteria can mutate in order to be immune to antibiotics.

E   Bacteria are becoming resistant to antibiotics much more slowly than humans can invent new antibiotics.

A   a strong predictor of adult weight.

B   subject to disruptive selection.

C   subject to directional selection.

D   not a heritable trait.

E   subject to stabilizing selection. 

A   The basic shapes of fish, penguins, and dolphins are vestigial structures.

B   Divergent evolution and adaptive radiation into new niches often result in convergent evolution.

C   Parallel evolution is common among aquatic mammals.

D   Fish, penguins, and dolphins all faced the same physical constraints during their evolution and converged upon the same body plan. 

E   The similarities are probably due to random chance.

A   very different proteins

B   very similar DNA 

C   very different DNA

D   none of these, their is no relationship between DNA and relatedness

A   that are heritable. 

B   that are adaptive.

C   that confer a reproductive advantage.

D   that are acquired in an individual’s lifetime.

E   that reduce mortality.

A   more intricate adaptations.

B   organisms that are stronger.

C   organisms that are perfectly adapted to their environments

D   uniformity.

E   None of the above is correct. 

A  Migration of individuals into a population generally increases the genetic variability within a population.

B  Only choices a) and c) are correct.

C  Migration of individuals into a population generally decreases the genetic variability within a population.

D  Migration of individuals into a population generally causes no change in the genetic variability within a population because it is a case of artificial selection.

E  Migration of individuals into a population generally causes that population to diverge to the extent that it becomes a new species.

A   it must be in an unstable environment.

B   the mutation rate must be low.

C   individuals must be migrating in and out of the population.

D   it must have a small population size.

E   its members must possess inheritable variation. 

A   STIs can be transmitted through the mouth or the anus.

B   Genital herpes can be treated and cured with antibiotics.

C   STIs can only be transmitted through sexual intercourse. 

D   STIs are annoying and uncomfortable but they are never fatal.

E   Nearly all STIs have severe and obvious ongoing symptoms.

A   testosterone; menstruation

B   testosterone; ovulation 

C   sperm; ovulation

D   none of these is correct

E   sperm; menstruation

A   vagina; oviduct 

B   uterus; ovary

C   vagina; uterus

D   cervix; uterus

E   uterus; oviduct

A   epididymis

B   urethra

C   prostate 

D   bulbourethral glands 

E   seminal vesicles 

A   organogenesis

B   fertilization

C   blastulation 

D   gastrulation

A   Finding a mate can consume lots of energy and time. 

B   The offspring of sexual reproduction are genetically different.

C   The offspring are better suited to survival in a changing environment.

D   None – all of these are advantages.