Select the Most Appropriate Choice for Each Person

question 32

Multiple Choice

Select the most appropriate choice for each person.
-Lyell

• A)a proponent of uniformitarianism
• B)developed the theory of catastrophism
• C)believed that giraffes have long necks because their short-necked ancestors stretched their necks and passed this change onto their offspring
• D)was a naturalist who sailed on the Beagle and studied finches
• E)wrote an essay relating population size to competition for limited resources
• F)natural historian and author; formed early ideas of the great chain of being

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Definitions:

Blastocoel

The fluid-filled cavity of a blastula.

Archenteron

The primitive gut formed during the early development of an embryo, which later differentiates into the digestive tract of an animal.

Ectoderm

The embryonic external layer of cells or tissue that forms early on and develops into the skin and nervous system.

Mesoderm

The middle layer of an embryo in early development, between the endoderm and ectoderm, which gives rise to muscles, bones, and blood tissues.