Bipedal Behavior and a Skeleton Adapted for Bipedalism Were Not

question 45

Multiple Choice

Bipedal behavior and a skeleton adapted for bipedalism were not weeded out by natural selection because they

• A) improved stability during locomotion.
• B) enabled the forelimbs to efficiently manipulate the environment.
• C) accelerated the development of binocular vision.
• D) improved stability during locomotion and enabled the forelimbs to efficiently manipulate the environment.
• E) improved stability during locomotion, enabled the forelimbs to efficiently manipulate the environment, and accelerated the development of binocular vision.

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Definitions:

Gametophyte

The haploid stage in the life cycle of plants and algae that produces gametes, or sex cells, through mitosis.

Filament Cells

Elongated cells often found in plants and algae that form long, thread-like structures involved in photosynthesis and structure.

Gametophyte

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

Sporophyte

Diploid generation of the alternation-of-generations life cycle of a plant; produces haploid spores that develop into the haploid generation.