What is it called when injured blood vessels contract to reduce or stop the flow of blood?

You have 2 plants of the same type and same size, same amount of leaves. one of them is put inside the house and the other one is put in the balcony. you water them saturday, one plant with 200 ml and the other with 400 ml of water. which one of your plants need less water? explain.

Explain how light energy is turned into chemical energy? ! due tomorrow!

As the earth formed, the force of gravity increased due to increased mass. what effect did this increased gravity have on the forming planet?