The type of cleavage seen in deuterostomes is called ________ cleavage.

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


radial

The type of cleavage seen in deuterostomes is called radial cleavage.

Biology & Microbiology

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What is the biggest threat to the species in the Klamath-Siskiyou forest of southwestern Oregon and northwestern California? a. Logging of the forest

b. Degradation of the streams by pollution. c. Periodic fires that sweep through, burning thousands of acres. d. Development of the region for urban expansion. e. None of these choices.

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ATP is a good energy carrier because

1.of the presence of a 5 carbon sugar. 2.of the presence of a nitrogenous base. 3.the three phosphate groups repel each other. 4.it is very stable. 5.adenine is its nitrogenous base.

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Together, all muscle types make up what percentage of the body?

a. 20 percent b. 30 percent c. 40 percent d. 50 percent e. 60 percent

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Xeroderma pigmentosum is a human genetic disease caused by

A) elevated levels of cholesterol in the blood. B) failure to produce pigment that protects the skin cells from UV light exposure. C) defective DNA excision-repair mechanisms. D) mutations that inactivate tumor suppressor genes. E) loss of genes controlling the SOS response.

Biology & Microbiology