Which organ in the excretory system helps get filter waste?(1 point)

Responses

ureter
ureter

urethra
urethra

bladder
bladder

kidney

kidney

In which two organs is food broken down?(1 point)

Responses

esophagus and small intestine
esophagus and small intestine

small intestine and large intestine
small intestine and large intestine

esophagus and stomach
esophagus and stomach

mouth and stomach

esophagus and stomach

Which component of nerve cells contains the nucleus? (1 point)

Responses

axon
axon

cell body
cell body

neuron
neuron

dendrite

cell body

A girl has her eyes shut and is standing inside a brightly lit room. What happens to her pupils when she opens her eyes? Why?(1 point)

Responses

Her pupils grow because the muscles contract.
Her pupils grow because the muscles contract.

Her pupils grow because the muscles relax.
Her pupils grow because the muscles relax.

Her pupils shrink because the muscles contract.
Her pupils shrink because the muscles contract.

Her pupils shrink because the muscles relax.
Her pupils shrink because the muscles relax.

Her pupils shrink because the muscles contract.

The human body has four types of tissues. What part of the eye uses muscle tissue for opening and closing movements?(1 point)

Responses

Cornea
Cornea

Iris
Iris

Sclera
Sclera

Retina

Iris

The organ in the excretory system that helps filter waste is the kidney. The kidney performs the vital function of filtering waste products and excess water from the blood to form urine. To determine the correct answer, you can start by understanding the basic function of each organ listed. The ureter is a tube that carries urine from the kidney to the bladder. The urethra is a tube that carries urine from the bladder to the outside of the body. The bladder stores urine until it is released. Finally, the kidney is responsible for filtering waste and excess water from the blood. Therefore, the correct answer is kidney.