Hox genes determine an animal’s
a. body plan.
b. size.
c. skin color.
d. eye color.

The best answer is A - body plan.

Hox genes also called homeotic genes are any group of genes which control the pattern of body formation in the early stages of embryonic development of organisms.

These genes code for a what are known as transcription factors that direct cells to form various parts of the body.

A homeotic  protein has the ability to activate one gene but repress the other, producing effects which complement the development of organism.

Human have 39  hox genes divided into four separate clusters  A, b, C, D, located on different chromosomes.

wild parsnip is a perennial plant which reproduces rapidly in areas which have no sign of agricultural activity such roadside or at no tillage open areas. it's considered invasive because it can inhibit the growth of another plant  and its reproduction is fast. there are several harmful effects of this invasive plant although its taproot is edible since it is a member of the carrot family. wild parsnips can cause skin blistering when in contact because of the chemicals it contains, second it inhibits the growth of other plants, it will restrict the growth of animals when eaten and lastly, it drives away natural pollinators like bees.