The purpose of capillary tubes is to: permit oxygen and nutrients to be absorbed by cells
allow blood to complete a path between arteries and veins
reverse the flow of blood
provide a means for cell wastes to enter the blood stream
3 Attempts Remain

What is the relation ship between structure and function in an organism

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

What is the following best defines climate?