Answer:
.02
Explanation:
When finding population density, divide the amount of people, animals or things in the region by the total square miles. 40/2000 is .02.
Natural selection is a way of environmental factors playing a role in the process of picking and choosing what stays and what goes
Growth I think could be right
<span>The oldest rocks preserved in the planet contain the earliest evidence of life on Earth. Earth is said to be about 4.5 billion years old however the first signs of life on Earth was only about 3.5 billion years ago. Therefore, water on Earth was able to sustain life that long. The answer is A. True. </span>
Birds and fish however the bird would hurt the fish because some birds are carnivores and they feed on fish