Hey guys. What is physically?

Help me to find a moderator Please.

Experiment scenario 2: a biology student wants to conduct a study of how the amount of food affects the weight gain for mice. i have set up four cages with a mouse in each cage. fill in the boxes that would allow the biology student to complete the study correctly

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system