1.Which part of the skeleton protects the heart and lungs?
The kneecapThe rib cageThe skullThe pelvis
2.Through which part do most plants take in water?
The flowersThe seedsThe fruitsThe roots
3.What carries messages between the brain and the rest of the body?
NervesArteriesTendonsBones
4.Which part of the blood fights infections?
Red blood cellsWhite blood cellsPlateletsPlasma
5.Which organ makes bile and breaks down harmful substances such as alcohol?
Small intestineStomachHeartLiver
6.In which organ are most digested nutrients absorbed into the blood?
LiverBrainSmall intestineLungs
7.Which nutrient does the body mainly need for growth and repair?
FibreWaterProteinCarbohydrates
8.How many chambers does the human heart have?
6243
9.Which part of the blood carries oxygen?
PlateletsRed blood cellsPlasmaWhite blood cells
10.What is the main job of plasma?
Fight germs and infectionsCarry dissolved nutrients, hormones and wasteCarry oxygen around the bodyHelp the blood to clot at a cut
11.Which gas is there more of in the air we breathe out than in the air we breathe in?
HydrogenCarbon dioxideOxygenNitrogen
12.What is the largest organ of the human body?
The brainThe liverThe heartThe skin
13.How many bones are in an adult human skeleton?
106256206306
14.What is the main job of the heart?
Make bile and break down harmful substancesControl the body and process information from the sensesPump blood around the bodyTake in oxygen and get rid of carbon dioxide
15.Which organ takes oxygen into the blood and removes carbon dioxide?
StomachHeartLungsLiver