Excretory systems

The lungs, kidney and skin are all part of the

• nervous system

• nephron

• kidney

• excretory system

Which organ system removes cellular wastes as the result of cellular respiration?

• nervous
• digestive
• excretory
• circulatory

what do the lungs do in the excretory system

• dispose of carbon dioxide through exhalation
• disposes of smog thru exhalation
• dispose of ultraviolet rays through exhalation
• dispose of rays through exhalation

The small intestines are lined with tiny projections called_____ which absorb the nutrients from the food into the bloodstream.

• villi

• cilia

• flagellum

• esophagus

Which of the following is not a waste product of excretion

• Carbon Dioxide

• Oxygen

• Sweating

• Urea

Which of the following is not an organ involved in the excretory process

• The Skin

• The Kidney

• The Pancreas

• The Lungs

What is the outermost layer of the kidneys?

• glomerulus
• medulla
• pelvis
• cortex

What is the middle layer of the kidneys called?

• medulla
• pelvis
• cortex
• glomerulus

Where does the waste from the kidneys go to be excreted from the body?

• lungs

• cortex

• medulla

• bladder

Sweat is a form of excretion. What substances are excreted via sweat?

• urea

• salts

• water

• all of the above