Discuss the major trends in hominid evolution

What will be an ideal response?


Bipedalism (walking on two feet) evolved early and may have set the stage for increases in brain size. These two developments are in turn linked to cultural developments, such as tool use and language. The degree of sexual dimorphism decreased.

Biology & Microbiology

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Answer the following statements true (T) or false (F)

1. Chemical defenses are found only among animals. 2. The mimicry of coral snakes by scarlet king snakes is an example of Batesian mimicry. 3. Fleas are endoparasites. 4. Phoretic species are commensals.

Biology & Microbiology

What percentage of a typical eukaryotic genome is coding?

a. 10?20% b. 1?2% c. 20?30% d. 25?50% e. 50?75%

Biology & Microbiology

To which of the following is a megaspore most closely and completely related?

a. female gametophyte b. seed c. ovule d. egg e. endosperm

Biology & Microbiology

Four of the five choices listed below are derived

from the same germ layer. Select the exception. a. lining of intestinal tract b. circulatory system c. liver d. pancreas e. stomach

Biology & Microbiology