Cells that have an extra 21st chromosome are

A) tetrasomic.

B) triploid.

C) haploid.

D) trisomic.


D) trisomic.

Biology & Microbiology

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Which type of animal depends on the environment for body heat?

a. endotherm b. mesoderm c. ectotherm d. anterotheil

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Ferns are independent of water for reproduction.

Answer the following statement true (T) or false (F)

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Delivery of bile into the small intestine causes the __________ of fats, breaking them into smaller, more easily

digested droplets. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

An individual muscle cell is called a _____

1.fascicle 2.muscle fiber 3.myofibril 4.sarcomere

Biology & Microbiology