Which three of these structures are common to animal and plant cells?
Cell membrane
Cytoplasm
Nucleus
Cell wall
Chloroplasts
Vacuole
What is the function of ciliated cells in the lining of the oviduct?
To trap dust and microbes.
To carry female genetic information.
To move the egg cell along the tube from ovary to utuerus.
Red blood cells have no nucleus.
Which 7 organs make up the nervous system?
Brain.
Eyes.
Ears.
Kidneys.
Nose.
Heart.
Nerves.
Skin.
Mouth.
An animal or plant grows because...
the cells grow bigger and bigger as it gets older.
the cells divide and make new cells.
the cells disappear which leaves room for more muscle.
Food from the mouth travels down the pancreas to the stomach.
How long does a human pregnancy last?
7months and 2weeks.
8 and a half months.
9 months.
6months.
The chemical that helps red blood cells collect oxygen is called...
Homogoblin
Haemoglobin
Enzymes
Capillaries have walls that are...
One cell thick.
Thick and muscular.
Full of valves.