Which of the Following Is Incorrect About Blood Cells

question 7

Multiple Choice

Which of the following is incorrect about blood cells?

• A)They develop from undifferentiated stem cells.
• B)They include glial cells.
• C)They include erythrocytes that, when mature, lose their nuclei.
• D)After birth, they are produced in red bone marrow sites.
• E)They include leukocytes that are either granulocytes or agranulocytes.

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Definitions:

Blastopore

Opening into the primitive gut formed at gastrulation.

Vertebrates

Animals with a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fish.

Gray Crescent

Region that forms during early cellular differentiation of the embryo; believed to contain unique chemical signals that are important during development.

Fertilization

The process by which male and female gametes combine to form a zygote, initiating embryonic development in sexually reproducing organisms.