A drawback of the biological species concept is that it cannot be applied to:
A. extinct organisms (e.g., fossils).
B. asexual organisms such as bacteria.
C. polymorphic species.
D. extinct and asexual organisms.
E. all of the answer options are correct.
D
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Fertilization typically occurs in the ____
a. ovary b. oviduct c. uterus d. cervix e. vagina
What is a family tree that is used to follow human matings that have already occurred?
A) test cross B) karyotype C) sex-linked record D) pedigree
The comparison of embryos across species reveals the conservative nature of the genes responsible for ____.
A. food procurement B. reproductive behavior C. embryonic development D. embryonic size E. embryonic intelligence
Of the taxonomic groups listed below, which is the broadest (contains the most species)?
A. Phylum B. Family C. Class D. Kingdom E. Order