Question

The table below shows the number of invertebrates found in a tide pool. Find the ratio of crabs to the total number of invertebrates. Then explain its meaning.

The tables is shown below:

Invertebrates Numbers
snails 11
crabs 9
barnacles 18
chitons 14

Answer 1

The ratio is 9:52. Meaning there is 9 crabs in the tide pool compared to all other invertebrates in the tide pool (including crabs). Crabs are also probably higher on the food chain because there is less of them, meaning they require more food then the other invertebrates.
Hope this helps!