21.a mother who is homozygous recessive for short eyelashes and a father who is homozygous dominant for long eyelashes have a child. what are the chances the child will have short eyelashes?

No children will have short eyelashes. Chance or probability is "0".

Explanation:

Father - dominant long - LL

Mother -recessive -short - ll

So, their children will get "L " from the father and "l ", from their mother.

Genotype of the children is Ll, and phenotype is long eyelashes.

So, no children will have short eyelashes. Chance or probability is "0".

the answer is tropical areas. the tropical areas obtain more

radiant energy from the sun than they lose to space through terrestrial

radiation, and vice versa for polar areas. earth has an energy remaining in the

tropics and an energy scarcity for the polar areas.

explanation:

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.