HELP

1Pictures of ten living things are shown below.

Make a table like the one below. Complete it by writing the letter for each living thing in the correct group.

Animals / Plants / Microorganisms / Fungi

2Look at the descriptions below. Some describe only animals, some describe only plants and some describe both animals and plants.

Copy and complete the table by putting each description in the correct column. You may use each one once, more than once or not at all.

Plants can / Animals can

© Harcourt Education Ltd 2003 Catalyst 1

This worksheet may have been altered from the original on the CD-ROM.

CORE

3The British Entomological Society studies insects. Here is a group of beetles they found on an expedition to Patagonia.

aDraw a table that puts these beetles into groups by looking at the pattern on their back. Think about how many columns you will need and what heading you should write for each column.

bDraw another table to group the beetles by their head pattern.

ciThere is another feature that differs from beetle to beetle.What is the feature?

iiDraw a third table to group them by this feature.

dThere are some identical pairs of beetles in the sample.Write down the pairs that are identical.

eAnimals are classified into two groups according to the type ofskeleton they have. To which group do beetles belong?

EXTENSION

4This question refers to the beetles shown in question 3.

aThe research team named beetle A the catalyst beetle. Do youthink that beetle B is a variation on the catalyst beetle, or acompletely different species? Give a reason for your answer.

bThe team named beetle C the tyre beetle because they thoughtthe pattern on its back looked like the tread on a car tyre.

iWhich other beetles are tyre beetles?

iiAre tyre beetles all identical? Explain your answer.

cDesign and draw a key to identify each of the beetles shown.Use letters, not names, for the beetles and remember that someof them are identical.

© Harcourt Education Ltd 2003 Catalyst 1

This worksheet may have been altered from the original on the CD-ROM.