In what way are insects, arthropods, and molluscs similar to each other?

a. They have a skeleton.
b. They have eyespots.
c. They have wings.
d. They have ocelli


Ans: d. They have ocelli

Biology & Microbiology

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A. They are superantigens. B. They kill neutrophils. C. They make holes in host cell membranes. D. They bind to Fc regions of antibodies.

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Ancestors of the Galàpagos finches had two different types of seeds to eat on some islands. Some seeds were very small, and required small beaks to handle, other seeds were very large and required large strong beaks to crack. This led to among the Galàpagos finches.

A. disruptive selection B. stabilizing selection C. directional selection D. sexual selection E. artificial selection

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What structures are found along lymphatic vessels and are heavily clustered in the armpit, groin, and neck?

A. Lymph nodes B. Thymus C. Spleen D. GALT E. Tonsils

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The HIV virus contains all of the following components except ________

A) integrase B) double-stranded RNA C) single-stranded RNA D) reverse transcriptase E) protease

Biology & Microbiology