Todos os seres vivos participam de alguma forma do ciclo da água. Uma das formas com que os animais liberam água para o ambiente é através do processo de:

• Precipitação

• Absorção

• Excreção

• Ingestão

The process in which complex food is broken down into simple, water soluble substances is called _________

• Digestion

• Ingestion

• Absorption

• Assimilation

• Egestion

The pushing down of food due to contraction & relaxation of wall of alimentary canal is called ___________

• Bolus

• Peristalsis

• Mastication

• Epiglottis

Which gas do humans breathe in so our cells can make energy?

• oxygen

• carbon dioxide

• nitrogen

• water vapor

Which of the following correctly describes the purpose of digestion?

• To break down complex food molecules into simple soluble molecules

• To make complex food molecules from simple soluble molecules

• To make use of simple soluble food molecules

• To remove complex food molecules from the body

Which system works to transport oxygen and other nutrients throughout the body?

• nervous

• circulatory

• excretory

• muscular

What is the smallest unit of life in the human body?

• organ

• cell

• body system

• tissue

Which system provides structure and support for the body?

• skeletal

• muscular

• digestive

• excretory

4. Conjunto formado por células semelhantes.

• ÓRGÃO

• ORGANISMO

• SISTEMA

• TECIDO

A função do sistema urinário é eliminar excesso de água, sais minerais, ureia e outras substâncias não necessárias ao organismo.

A afirmação é:

• Verdadeira

• Falsa