The seminal vesicles secrete:a
fructose, which nourishes the developing embryo.
b. a basic fluid, which neutralizes the acidic environment of the vagina.
c. mucus, which lubricates the penis.
d. sperm, which fertilize the ovum.
e. prostaglandins, which stimulate contraction of the uterus.
e
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Iridium is more common in meteorites than in the crust of the Earth
a. True b. False Indicate whether the statement is true or false
The semicircular canals are
a. empty. b. filled with gas. c. filled with a liquid. d. filled with bones or stones. e. filled with sand grains.
In the Griffith experiment, why did the mice become ill when injected with a mixture of dead S bacteria and live, capsuleless R bacteria?
A. RNA was passed from the dead virulent S bacteria to the live nonvirulent R bacteria. B. The virulent S bacteria were not 100% dead and so were still able to make the mice ill. C. Protein was passed from the dead virulent S bacteria to the live nonvirulent R bacteria. D. DNA was passed from the dead virulent S bacteria to the live nonvirulent R bacteria. E. RNA was passed from the live R bacteria to the dead S bacteria, bringing them back to life.
Which of the following are the main decomposers of the world?
A. Bacteria B. Fungi C. Protistans D. A & B only E. A, B, & C