An algae cell is observed under the microscope and it is observed to be green in color. What is a possible prediction you can make about this cell. It is capable of digestion
It is capable of taking in food molecules
It is capable of photosynthesis
It is capable of excretion

answer denitrification;

answer///unconditioned stimulus;

i took a test for bio that had this question and these were the correct answers, not sure if this is any now lol

the nervous system and the muscular system work together.  

sweat reaches the surface of the skin and evaporates into the air.

muscles underneath the skin relax, causing hair on the skin to lay flat.