Which vessel might be blocked if the heart itself was not being well oxygenated?
A. aorta
B. coronary artery
C. carotid artery
D. superior vena cava
E. inferior vena cava
B. coronary artery
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After a photosynthetic organism uses energy for its own basic functions, such as growth and reproduction, _________ is the energy that remains for the next trophic level.
a. the grazing food web b. net primary productivity c. gross primary productivity d. biomagnification
Discuss how photosynthesis is a natural partner for aerobic respiration. What will be an ideal response?
It is the (larvae/nymph/adult) stage of the tick genus Ixodes that most often transmits Lyme disease to humans
What will be an ideal response?
Sustainable agriculture depends on planting large tracts of high-profit crops
Indicate whether the statement is true or false