Choose one of the three pigeon varieties pictured in the figure above and describe what steps breeders may have gone through to produce the unusual characteristics depicted
What will be an ideal response?
ANS:
Answers will vary, but should include: the selection of pigeons in subsequent generations with traits closest to the attributes of the varieties pictured.
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Which of the following lists the female reproductive structures that sperm will pass through on their way to fertilize an oocyte, in the correct order?
a. cervix.. vagina..oviduct...ovary b. cervix...oviduct...vagina...uterus c. uterus...cervix...vagina...ovary d. vagina...cervix...uterus....oviduct
Corals that compete by growing fast can also use:
a. stinging filaments from their digestive cavity. b. sweeper tentacles. c. interference. d. their greater ability to tolerate shade. e. chemicals to paralyze competitors.
In most cases, pathogens leave the host via the portal of exit through:
a. sloughing b. adhesion c. discharge d. secretion e. diffusion f. filtration g. excretion
If you swim underwater for 200 yards you would expect:a
the of the air in the alveoli to increase. b. the in the tissues to increase. c. the of the air in the alveoli to decrease. d. the in the tissues to increase. e. the of the air in the alveoli to increase and the in the tissues to increase.