Why has coronavirus caused such spread around the world? * Because it is antibiotic-resistant
Because it only infects old people
Because it is new to humans and we have never been exposed to it
Because of Severe acute respiratory syndrome, the original coronavirus never made it to the US

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it

Which organism in this food web is an omnivore?coati

Select the correct answer. which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. c. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated. d. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea.