What happens to the diaphragm when you breathe in?

It contracts and flattens (moves down)

Which statement correctly distinguishes breathing from respiration?

Breathing moves air in and out; respiration releases energy in cells

Receptor, sensory neurone, relay neurone, motor neurone, effector

Pupil narrows; circular muscles contract

Type 1: too little insulin made; type 2: cells stop responding to insulin

Dilute solution to a more concentrated solution across a partially permeable membrane

Blood passes through the heart twice per circuit, allowing high-pressure delivery to the body

Veins carry blood at low pressure, so valves prevent backflow

It pumps blood at higher pressure around the whole body

16questions. Pick an answer and you'll see why right away.

Where in the respiratory system does gas exchange take place?
What happens to the diaphragm when you breathe in?
Which statement correctly distinguishes breathing from respiration?
What is the correct order of a reflex arc?
In bright light, what happens to the pupil and which muscles cause it?
Which organ releases insulin to control blood glucose?
What is the main difference between type 1 and type 2 diabetes?
Osmosis is the movement of water from a:
What term describes a plant cell that is firm because it is full of water?
Which plant tissue carries water up from the roots to the leaves?
Why do humans have a double circulatory system?
Which blood vessel has thick muscular elastic walls and carries blood at high pressure?
Why do veins contain valves but arteries do not?
Which component of blood carries oxygen?
Through which vessel does deoxygenated blood leave the heart for the lungs?
Why is the wall of the left ventricle thicker than the right?