Which part of the brain assists the digestive system by moving food through the digestive tract?

Explanation:

The hypothalamus is the part of the brain. It is located at the bottom region of the brain typically near the pituitary gland. It plays important functions like releasing hormones, and regulating the body temperature.

It has connection with the autonomic nervous system. It can send signals to various parts of the body and can influence the functions such as heart rate, perspiration, digestion which are not under the voluntary control of the organism.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.