Here is the order:
Gene,
DNA,
Chromosome,
Nucleus,
Cell,
Organism.
[Hey if this is wrong, don't post a rude reply! Message me and I will try to correct the answer!]
A fixed action pattern
is a behavior that is carried out to completion once started, regardless of
changes in the original stimulus and the sequence is unchangeable. The
unlearned behavior of fixed action patterns are triggered by a type of external
stimulus that start off a particular organism.
Answer:
to know whether there is starch in the leaf
