Which examples describe how a migratory bird will meet the challenge of reproducing?
choose all answers that are correct.
a.
the bird will defend its nest and offspring from predators and competition.
b.
the bird will reproduce in unfamiliar territory.
c.
the bird will behave in ways that attract a mate or mates.
d.
the bird will return to the same area to meet its mate each year.

What mistake did john needham make that caused him to conclude that spontaneous generation for microorganisms occurred? a. he re-contaminated his boiled broth solutions. b. he destroyed the vital force in the solutions. c. he did not boil his broth solutions, only warmed them. d. he failed to seal his flasks of boiled broth. e. he allowed his assistant to conduct the experiment which he did not monitor closely.