The average human male produces about
A) 25 sperm per second.
B) 250 sperm per second.
C) 500 sperm per second.
D) 1,000 sperm per second.
D
You might also like to view...
What are ethical standards intended to accomplish?
What will be an ideal response?
Thorndike found that a cat learned to escape from a puzzle box by the consequences of its behavior. How could he arrive at such a conclusion?
a. The CR was increasing in magnitude over time. b. The cat learned by watching Thorndike open the puzzle box. c. The CS (freedom) provided information about the occurrence of the UCS (piece of fish). d. The time it took cats to escape decreased over time.
The idea that people's social behaviors will vary according to the degree of genetic relatedness among interactants is called
a. moral relativism. c. in-group favoritism. b. reciprocal altruism. d. the inclusive-fitness theory.
Which of the following insulates and protects a neuron's axon, as well as helps to speed along electrical impulses?
a. synaptic knobs b. receptor sites c. myelin sheath d. neuromodulators