In females, the egg passes from the ovary to the uterus via the __________, and fertilization

occurs in the __________.



a. oviduct; oviduct
b. oviduct; uterus
c. urethra; oviduct
d. urethra; vagina


A

Biology & Microbiology

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Hybridization between different species is rare because it ____

a. requires the breakdown of a barrier preventing interbreeding b. causes lethal mutations in hybrid offspring c. leads to the exchange of genes between closely related species

d. leads to gene flow between species e. contradicts the species concept

Biology & Microbiology

Habitat fragmentation can reduce biodiversity by ____

a. withdrawing an essential resource from native species b. sterilizing for pollution control c. eliminating vast tracts of forests d. introducing more native species into a habitat e. decreasing human use of natural resources

Biology & Microbiology

All of the following are taproots that are consumed as vegetables EXCEPT

A. radishes. B. celery. C. beets. D. carrots. E. turnips.

Biology & Microbiology

Which of the following alternatives would lead to an interpretation of the relationship of extinction to number of species present different from the one depicted in Figure 20.23?

A) The probability of extinction per species increases with increasing diversity as competitive exclusion becomes more likely. B) The probability of extinction per species decreases with increasing diversity as mutualistic relationships buffer processes that lead to extinction.

Biology & Microbiology