So this is a simple yes or no question In photosynthesis is the water broken down by hydrogen molecules yes or no

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

This is the interaction of two organisms where one is and the other is neither nor harmed.

Which of these internal feedback reactions does not need your brain? oa. your leg jumping when it is hit by a reflex hammer b. your deeper breathing when you need more oxygen c. your body temperature rising when you have an infection d. your heart beating faster when you are in danger