What is an important effect of coastal upwelling?

a. It creates a stable water column

b. It provides nutrients for photosynthesis.
c. It brings zooplankton to the surface.
d. It distributes new sediment.


b

Biology & Microbiology

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What is the key concept addressed by the question?

What will be an ideal response?

Biology & Microbiology

Menstrual flow results in the discharge of:

a. the follicle b. the corpus luteum c. the uterine lining d. surface cells from the vagina e. blood from the blood vessels on the outer surface of the uterus

Biology & Microbiology

Rhythmic leaf folding is an example of

a. positive feedback. b. division of labor. c. circadian rhythms. d. homeostasis. e. negative feedback.

Biology & Microbiology

Phil is conducting a seed germination experiment. He places 3 groups of lettuce seeds in a 34º Celsius incubator with adequate moisture. One set of seeds is placed in a dark area with no light source. A second set is placed under artificial light and third set of seeds is placed in direct sunlight. This experiment is intended to test Phil's hypothesis that light is necessary for lettuce seed germination.Based on the experimental design, which variable was the control?

A. Moisture B. Temperature C. Seeds in the dark D. Type of light E. Germination rate

Biology & Microbiology