Nephridia are ____.

A. circulatory organs
B. respiratory organs
C. excretory organs
D. endocrine organs
E. part of the nervous system


Answer: C

Biology & Microbiology

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Gap genes are sold in the most fashionable malls in America

A. true B. false

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a. True b. False

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There are two types of myofilaments. Thin filaments primarily consist of two intertwining strands of a protein called ______________

a. actin
b. chromatins
c. lamins
d. tubulins
e. lamellae

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Lactose intolerance is the inability to

A) produce milk proteins. B) produce lactose. C) digest cellulose. D) digest lactose.

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