A structure that gives the sponges their phylum name

is indicated by
a. A.
b. B.
c. C.
d. D.
e. E.


Answer: e

Biology & Microbiology

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Severe pain in the lower right abdomen along with fever and nausea is often a sign of an infection in this structure.

A) Large intestine B) Stomach C) Esophageal cancer D) Appendix E) Mouth F) Salivary glands G) Rectum H) Cirrhosis I) Gallbladder J) Small intestine

Biology & Microbiology

Now extinct, tooth parts of ____ are abundant as fossils dating from the early Paleozoic to the early

Mesozoic era. These jawless fishes are considered to be the earliest vertebrates with bonelike structures.

a. acanthodians b. conodonts c. osteolepiforms d. placoderms e. ostracoderms

Biology & Microbiology

Which developmental event occurs last?

a. tissue specialization and growth b. gamete formation c. gastrulation d. cleavage e. fertilization

Biology & Microbiology

A set of SNPs close together on a chromosome is called a(n) ____________________. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology