This animal as an adult has radial symmetry,
an internal skeleton, fluid-filled feet, and is a
deuterostome. This animal is ___.
a. a sea star
b. a jellyfish
c. a slug
d. an isopod
e. more than one of these
A
Biology & Microbiology
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Autotrophy has been observed among the ________.
A. methanogens B. cyanobacteria C. extreme thermophiles D. All of the choices are correct.
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What structural feature of a leaf enables it to obtain CO2 from the air?
A) Chloroplast B) Stomata C) Epidermis D) Cuticle E) Mesophyll
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During S phase, ________ occurs
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Hemoflagellates cause tropical diseases such as sleeping sickness and Chagas' disease that are ALL transmitted by
A) contact with fecal contaminated soil. B) contact with contaminated water. C) insect vectors. D) sexual contact.
Biology & Microbiology