The half-life of caffeine in a person's bloodstream is about 6 hours. If a person's bloodstream contains 110 milligrams of caffeine, how much of that caffeine will remain after 14 hours?

Which of the following can influence the climate in a small area within a biome?

How do reptiles differ from other animals

Which is not an input into the Calvin-Benson cycle?

What is an ozone layer

One is similar with the other about malaria prevention method A. use net B. use DDT C. use anti parasite drug D. drain standing water l wanna to know the answer but l need more explanation so don't write the answer only,

How does the amount of uranium in zircon tell us how old the crystal is?

Which organism's are omnivores? A) The snake, the bear, and the fish B) The fish and the eagle C) The bear and the fish D) The snake and the mouse If an omnivore is an animal that eats both plants and animals, I'd choose D because all the other

How are all humans similar?

Why does earth have such a diversity of plant and animal life? give three reasons.

After sequencing a molecule of dna, you discover that 20% of the bases are cytosine. what percentage of the bases would you expect to be thymine? explain why.