First eliminate choices C and D since they both mention that fact 1 is crossing over ( which is also referred to as genetic recombination) . So you're left with A and B and the correct answer is B .
Mold is a living organism, therefore it is biotic.
I think verterbrates have a back bone others do not. I only THINK so.
Hypothalamus is a part of the brain that links the nervous system to the endocrine system via the pituitary gland. It helps maintain the internal environment constant by regulating major processes in the body such as the heart rate and the body temperature. It is therefore, both a neural and endocrine organ.
Answer C. Over warm ocean water.
Warm water of the ocean bump into cold air.
