What is a hypothesis? A. A type of syringe used in medicine .

B. A proposed explanation based on observations , scientific knowledge or logic

C. A guess .

D. An explanation of scientific phenomena developed after experimentation

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

The arrows indicate the direction of wind flow. which place experiences monsoons?

What will happen if deforestation continue to destroy the green plant on the planet