Seminal vesicles secrete fructose and ____ into the semen
a. DHT
b. oxytocin
c. testosterone
d. estrogen
e. prostaglandins
e
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Which of the following is not true of van der Waals interactions?
A. The interaction depends on the distance between atoms. B. Attractive and repulsive forces are balanced at the van der Waals radii for each atom. C. Repulsive interactions arise when atoms are separated by a distance equal to the sum of their combined van der Waals radii. D. Atoms that are farther apart than the sum of their combined van der Waals radii do not experience van der Waals forces. E. All of these statements are true.
If red bone marrow can be surgically removed from an individual, what would happen to that person in terms of the formed elements of the blood?
What will be an ideal response?
Which of the following is true of radiometric dating?
A) A mineral that is 10,000 years old would best be dated with radioactive potassium. B) A mineral that is 1 billion years old would best be dated with radioactive carbon. C) Radioactive potassium-to-radon gas ratio can be used to date minerals. D) One can infer the age of a fossil by radiometric dating of the minerals found near the fossil. E) Carbon-14 decays with a half-life of 60,000 years.
What methods do animals use to communicate with one another?
What will be an ideal response?