Psychological researchers study genetics in order to better understand the that contributes to certain behaviors.
D
biology
neurology
O psychology
physiology

A

Biology

Explanation:

Psychological researchers study genetics in order to better understand the biological factors that contribute to certain human behaviour.

Because bodies with a particular genetic code are related in some certain behavioral forms and actions such as thought, feelings, attitude e.t.c

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d