They have a nerve tissue located in the head end that can detect objects through its sense organs. The sense organs are sensitive to light, touch and vibrations.
It should be c at school we worked on this not to hard nor easy
I have just taken the test, and the answer is in fact B.
Pineapples, unlike most other fruit, contain an enzyme called bromelain, that breaks up the gelatin into it's amino acid building blocks. [Enzymes are biomolecules that catalyze chemical reactions; most of them are proteins themselves.] Due to the bromelain, your jello doesn't become (or stay) solid.
