Organisms that produce all of their offspring in a single event are
A. never successful.
B. seasonally iteroparous.
C. semelparous.
D. always successful.
E. continuously iteroparous.
Answer: C
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In mammalian eggs, the receptors for sperm are found in the _____
A) fertilization membrane B) egg plasma membrane C) cytosol of the egg D) nucleus of the egg E) mitochondria of the egg
A covalent bond forms when
A. electrons are present in a valence shell. B. a valence electron is removed from one atom and added to another. C. a pair of valence electrons is shared between two atoms. D. one atom attracts electrons more strongly than another atom.
A patient is bitten by a dog with confirmed rabies infection. After treating the bite wound, the physician injects the patient with antibodies that are specific for the rabies virus to prevent the development of an active infection. This is an example of:
A) Natural active immunity B) Artificial active immunity C) Natural passive immunity D) Artificial passive immunity
Omega-3-fatty acids are not made in the human body but are essential to brain function, growth, and development. They are called omega-3-fatty acids because the third carbon from the end contains a double bond. The double bond indicates that they belong to which of the following?
What will be an ideal response?