Digestive and Excretory System!

Organ systems work together to maintain _____________, or steady internal conditions.

• equilibrium

• hibernation

• homeostasis

• homeopathy

Which of the processes is the beginning step in the digestive system?

• Chewing breaks food into smaller parts

• moves through the esophagus and enters stomach

• particles of food and water are absorbed into the bloodstream while in the small intestine

• the large intestine receives food that has not been digested; travels through to rectum and is expelled

___________ are the parts of food used by the body to grow and survive.

• Vitamin

• Nutrients

• Mineral

• Calorie

A __________ is the amount of energy it takes to raise the temperature of 1 kg of water by 1 degree Celcius.

• nutrient

• calorie

• vitamin

• mineral

The ___________ system removes solid, liquid, and gas waste materials from the body.

• excretory

• endocrine

• digestive

• skeletal system

The excretory system includes the lungs, _______, liver, kidneys, bladder, and rectum.

• large intestine

• stomach

• esophagus

• skin

The lungs remove carbon dioxide and excess water vapor when you ________________.

• breathe in

• breathe out

• breathe over there

• stop breathing?

The skin removes water and salt when you _________.

• sweat

• breathe

• eat

• wash your clothes

The _________ removes waste from the blood.

• kidneys

• liver

• pancreas

• chloroplasts

The kidneys remove urea in the body, making __________.

• ureters

• urine

• urethra

• cytoplasm