Based on modern molecular phylogeny, which animal taxon has members with radial symmetry?

a. Ecdysozoa
b. Deuterostomia
c. Radiata
d. Protostomia


Ans: c. Radiata

Biology & Microbiology

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Humans and chimps are both able to

A. walk upright. B. walk upright and use tools. C. use tools and communicate. D. use tools. E. communicate.

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Where are grassland biomes typically found?

a. in the middle of a continent b. in the rain shadow of a mountain range c. on the windward side of a mountain range d. on the leeward side of a mountain range

e. adjacent to the shore of a continent

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Which one of the following diagnostic imaging techniques does NOT expose the patient to additional radiation?

A) X- rays and ultrasounds B) ultrasounds and PET scans C) ultrasounds and MRI D) PET scans and MRI E) PET scans and X-rays

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Which animal is critically endangered in the United States?

A) black-footed ferret B) mourning dove C) striped skunk D) coyote

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