How do the respiratory system and circulatory system interact? (1 point) o
In the lungs, carbon dioxide is transferred to the blood and carried by red blood cells. Once it is distributed, the red blood cells
pick up oxygen and transport it back to the lungs, where is transferred to the lungs so it can be exhaled.
O
In the lungs, oxygen is transferred to the blood and carried by red blood cells..Once it is distributed, the red blood cells pick up
carbon dioxide and transport it back to the lungs, where is transferred to the lungs so it can be exhaled
The respiratory system and circulatory system do not interact because the respiratory system is related to breathing and the
circulatory system is related to blood.
O
In the lungs, air is transferred into the blood stream, where red blood cells deliver it to the heart. The heart then separates the
oxygen and sends it to the organs, while sending the waste back to the lungs to exhale.

The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

What type of reaction fuels the processes seen here?