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All living organisms release energy from nutrient molecules within their cells.
What is the name of this characteristic?
The horse, Equus ferus, and the donkey, Equus asinus, are able to interbreed. The offspring they produce is called a mule.
Which statement is correct?
The diagram shows an organism.
Which type of arthropod is this organism?
The diagram shows a cross-section through two guard cells of a leaf.
Which labelled structures would also be found in an animal cell?
The diagram shows a cross-section through a leaf.
Which label shows a tissue?
A student found four different worms in a sample of soil and drew diagrams of them. The diagrams were drawn with different magnifications.
Which worm was the longest?
Which statement describes the net movement of particles during diffusion?
The diagram shows a section through a mesophyll cell of a leaf.
Which part is partially permeable?
What are the smaller basic units of starch and glycogen molecules?
Some terms used to describe enzyme-controlled reactions are listed.
1 catalyst
2 product
3 protein
4 substrate
Which terms describe an enzyme?
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