2.
The heart has ... chambers.
4.
There is a pigment containing iron in the red blood cells called..
7.
The most common blood group is
8.
An organism that is fully grown is called
11.
...is pumped in to the heart
12.
What is the job of the adult?
15.
To grow or reach the next stage in a life cycle is to develop.
17.
Where does haemoglobin become oxyhaemoglobin?
18.
What kind of relationship is this:
Nemo will snuggle unharmed among the stinging tentacles of the anemone. The fish obtains protection and sometimes brings food to the anemone.
19.
..blood cells help us to fight infections by eating bacteria and other foreign matter.
21.
This is the process that creates glucose using energy from the sun in animal cells.
22.
..in the heart to prevent the blood from flowing backwards, keeping it in one direction.
23.
Which blood vessel has a high carbon dioxide concentration, a low oxygen concentration and a high blood pressure?
24.
The skeletal system is made up of
