Answer:
it means that student is running 8meters per second
B - Many Agricultural practices bear some pretty bad impacts on the environment. A, C and D are incorrect.
Answer:
digestion; mouth, esophagas, stomach, small intestine, large intestine
Explanation:
www.niddk.gov/digestion-system-how-it-works
I do not know anything about he digestive system since I am only in middle school, learning about earth science, so I looked it up ad this website came up.
A cell maintaining internal balance is called Homeostasis. Homeostasis means that everything is functioning properly and without outside help.
Answer:
Robert Koch
Explanation: He created tests that helped confirm that bacteria and other microorganisms cause a variety of diseases in human beings