In the Section "Investigating Life: What Makes Us Human?," the Scientists

question 17

Multiple Choice

In the section "Investigating Life: What Makes Us Human?," the scientists questioned what

• A)genetically differentiates humans from our closest relatives.
• B)caused human brains to be more advanced than other animals.
• C)caused humans to walk on two limbs compared to primates,who walk on four limbs.
• D)physically separates humans and chimpanzees from other primates.
• E)chromosomes all primates have in common.

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Definitions:

Mature Female

Typically refers to an adult female organism that has reached reproductive age or capability.

Gametophyte

The sexual phase in the life cycle of plants and algae that produces gametes.

Gymnosperm

Type of woody seed plant in which the seeds are not enclosed by fruit and are usually borne in cones, such as those of the conifers.

Cycad

Type of gymnosperm with palmate leaves and massive cones; cycads are most often found in the tropics and subtropics.