Which of the following describes the sites of leaf attachment in a stem?

A) joints
B) nodes
C) internodes
D) cotyledons


B

Biology & Microbiology

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What is the function of the prostate secretions?

a. to maturate the sperm b. to provide sperm with energy c. to protect sperm from vaginal acidity d. to stimulate the release of LH e. more than one of these is the function of prostate secretions

Biology & Microbiology

Arteries differ from veins in that 

A. veins carry blood to the internal organs of the body. B. arteries have valves that veins do not have. C. veins have thinner walls than arteries. D. the pressure in veins is greater than that in arteries.

Biology & Microbiology

Suppose a plant had a photosynthetic pigment that absorbed far-red wavelengths of light. In which of the following environments could that plant thrive?

A) on the surface of a lake B) on the forest floor, beneath a canopy of taller plants C) on the ocean floor, in very deep waters D) on mountaintops, closer to the Sun

Biology & Microbiology

What types of eugenics will be possible with

the use of genetic engineering?

a. super Olympic athletes b. enhanced memory capacity c. increased height d. reduced incidence of baldness e. all of these will be possible

Biology & Microbiology