Which energy source produces greenhouse gases? A. sunlight B. coal C. uranium D. wind

Solar energy is a clean, renewable energy source. Once a solar plant is built there is no fuel cost only maintenance.

1. Which of the following compete for space on intertidal rocks? A. Algae, Mussels, and Whelk B. Algae and Mussels C. Whelk and Chiton D. Starfish only

for each set of terms choose the one term that does not belong and explain why it does not belong 1. esophagus pancreas and large intestine 2. pepsin glycogen and glucose

Which trait exhibits typical dominant/recessive inheritance in humans?

What "sphere" is the largest reservoir of nitrogen?

In a population, when the birthrate becomes higher than the death rate, the population's growth rate A) decreases. B) increases. C) slows to a stop. Eliminate D) levels off and remains constant.

In spermatophytes, the plant embryo is encased in a seed. True False

Which statement best explains why the level of ATP in skeletal muscles changes during exercise? Adenosine and phosphate in ATP are destroyed by the muscles. Waste ATP accumulates in the blood stream rather than in the muscles.

How many braincells do I have?

Which of the following is not being undertaken to reduce the risks to human health from pesticides?