By which means of acquiring immunity is likely to produce the longest lasting protection?

A) natural
B) artificial
C) passive
D) active
E) Active, artificial, natural, and passive all provide equally long-lasting protection.


Answer: D

Biology & Microbiology

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Suppose sugar is removed from an excretory system tubule and returned to the blood. This would be an example of

____.

a. reabsorption b. excretion c. filtration d. secretion e. diffusion

Biology & Microbiology

Organs form and begin to function during the ____ period

a. embryonic b. amniotic c. fetal d. chorionic e. gastrulation

Biology & Microbiology

The X and Y chromosomes ____

a. are responsible for autosomal recessive inheritance b. will lead to color-blindness in all carriers c. are found paired with all 22 autosomal chromosomes d. are responsible for albinism e. play major roles in determining the sex of an individual

Biology & Microbiology

The development of a shelled egg allowed the ____ to become completely adapted to land. 

A. mammals B. insects C. reptiles D. amphibians

Biology & Microbiology