Answer:
#IN GIRLS
* adolsence
* menstruation
#IN BOYS
* penis strts turning big
*beard starts coming of face
B- roots and steams that can store a lot of water
Answer:
the wood is being burnt leaving behind ash and changing a solid to a gas ( wood to fire )
Explanation:
• Wear safety goggles
• Hold the test tube at an angle. Point the test tube away from yourself and all other people. Heat the test tube over the bunsen burner gently from the top of the substance being heated, and always.
hope this helps x
Why is the active site specific for only one type of substrate? Enzymes have a lock and key type fit so only a specific substrate fits in the activation site.