Which of the Following Anatomical Changes Was NOT Likely a Contributor

question 8

Multiple Choice

Which of the following anatomical changes was NOT likely a contributor to the development of full bipedalism in hominins?

• A)restructuring of the pelvis
• B)loss of opposable big toes
• C)a change in the angle of knee joints that support body weight
• D)having no arch in the foot

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Definitions:

Blastomere

A type of cell produced by the division of the egg after fertilization, contributing to the formation of the embryo.

Blastodisc

A small disc of cytoplasm at the animal pole of a reptile or bird egg; cleavage is restricted to the blastodisc (meroblastic

Blastula

An early stage of embryonic development in animals, characterized by a hollow sphere of cells.

Tissue Growth

The process by which cellular divisions and expansions result in an increase in the size and number of cells in a tissue, contributing to the organism's growth.