White blood cells have an important function in the human immune system. they leave the blood stream and attack and engulf invading bacteria and fungi. how do white blood cells move when outside of the blood stream

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased