Based on modern molecular phylogeny, which animal taxon has members with radial symmetry?
a. Ecdysozoa
b. Deuterostomia
c. Radiata
d. Protostomia
Ans: c. Radiata
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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.
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 continentWhich 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
Which animal is critically endangered in the United States?
A) black-footed ferret B) mourning dove C) striped skunk D) coyote