C <span>Antibiotics could cure chicken pox sooner than 7 days, since it is a virus</span>
Answer:
D
Explanation:
Many animals influence and contribute to ecosystem services. As pollinators, how do bees ultimately contribute to direct ecosystem services? (1 point)
O Bees pollinate plant species that contribute to the carbon cycle.
O Bees pollinate plant species that humans admire in nature.
Bees pollinate plant species that produce oxygen that humans need.
O Bees pollinate plant species that produce food.
During a controlled experiment, a scientist will isolate and test (D) a single variable. A conclusion, nor a mass of information can be isolated or tested. A control group is the group that would receive a placebo, so testing that would be futile.
