The answer is D. Offspring, because that is the product of this instinctual ritual, to keep their species continuing.
no they are not exercising for the fun of it
they are not making mating calls because they have the feet and have probably already met the female.
and no he isn't going to eat her
It belongs to 100-999 SCI Code. So its Primary category. Because its all about the farm and geographical industry that focuses on land production, deformation and production in growing the status of our economy and provide the need of people.
It developed everyones body
When you are sick your muscles shut down and you skeletal system helps keep you from turning into a blob.
Divergent-Seafloor spreading can occur at Divergent Boundaries. Tectonic plates will slowly move away from the other, the heat from the mantles convection current will crust the plastic making it much way less dense and the less dense material will rise up and will often form a mountain or elevated area of the seafloor.