The molluscan shell does not contain the:

a. periostracum.
b. prismatic layer.
c. narceous layer.
d. mantle.


D

Biology & Microbiology

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Since energy cannot be created, which arrow represents the energy that will be converted to chemical energy the chameleon can later use?

A. Arrow A, the tongue extending B. Arrow B, the insect being eaten C. Arrow C, sunlight striking the chameleon D. Arrow D, heat radiating from the chameleon

Biology & Microbiology

Which of the boxes marked 1-4 correspond to plants with a heterozygous genotype?

A) 1 B) 1 and 2 C) 1, 2, and 3 D) 2 and 3 E) 2, 3, and 4

Biology & Microbiology

Of the following, which is the least likely to be involved in cell-mediated immunity?

A) antibodies B) cytokines C) macrophages D) T cells

Biology & Microbiology

Cody is 4 months old and is given a DTaP injection by his pediatrician as part of the routine immunization schedule. What type of immunity will develop as a result of this?

A. artificial passive immunity B. natural active immunity C. artificial active immunity D. natural passive immunity

Biology & Microbiology