A reflex action is caused by a nerve or nerves and voluntary muscle. A hormonal reaction caused by the hormone's end organ's biochemical reaction to the hormone. Hope this help's
In this case, organisms in the same order are more closely related than the members of the same kingdom.
I believe a completely filled square represents a male affected with a disease.
A half-filled circle represents a carrier female, while a a half filled square represents a carrier male and a completely filed circle represents an infected female with a disease. Normally these are shown in a human pedigree which shows the occurrence an appearance or phenotype of a particular gene or organisms and its ancestors from one generation to the next.<span />
Well fossil fuels are a finite resource and at the rate we are using them, yes they will run out. but not anytime soon. but yes. we use them faster than they can be created. they WILL run out eventually.
Microscope allowed us to find known parasites, micro living things.
Technology allowed us to inherit knowledge on different plants and animals
