Use complete sentences, appropriate grammar, and punctuation…

Use complete sentences, appropriate grammar, and punctuation as you address the prompt below. This is an essay, not short answer, a list of numbered or bulleted items, or a collection of disarticulated sentences. It will not be two sentences long. It will be, at a minimum, a substantial paragraph if you’d like to recieve a good score. Discuss at least two advantages of internal fertilization (as in mammals) over external fertilization (as in sea urchins)