Which of the following describes the process of eutrophication?
a. Nutrient runoff causes the overgrowth of algae.
b. Minerals and nutrients cycle through the biotic world.
c. Excess phosphorus decomposes plant roots.
d. Rainwater falls to the ground through sulfur dioxide gas.
a. Nutrient runoff causes the overgrowth of algae.
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The electrons at the lowest energy level in the neon atom depicted in the figure above are found in
which orbital?
a. 1s b. 2s c. 2px d. 2py e. 2pz
Which are the three main roles played by organisms in community life?
a. producer, detritivore, decomposer b. consumer, detritivore. decomposer c. producer, consumer, decomposer d. facilitator, decomposer, consumer e. realized niche, fundamental niche, habitat
The human population is expected to double in about ________ years.
A. 60 B. 15 C. 25 D. 91
What category of cells includes both phagocytes and lymphocytes?
A. Leukocytes B. Platelets C. Erythrocytes D. Target cells