Answer:
The reproductive system.
Explanation:
Without the reproductive system, humans are not able to reproduce meaning the human species would go extinct. With the reproductive system, humans are able to create more humans, in this way humans do not go extinct.
<span>The primary evidence that supports the theory that an asteroid strike approximately 65 million years ago caused a mass extinction is a thin layer of clay containing iridium, an element that is common in space, but not on earth being of that age and found in many different places in the world, indicating a large-scale event..</span>
The snakes nutrition is carnivores based. The frogs nutrition is also carnivores based (feeds on other animals), but in this situation the snake is the predator and the frog is the prey
Answer: Basal metabolism rate or rate of energy expenditure
Basal metabolism rate <span>calculates the amount of calories that the body needs, in twenty-four hours,
to keep nourished during the course of daily activities, without prejudice the functioning of the main bodies.</span>