Which of the following are main tenets of darwin's theory of natural selection? (there can be more one answer) ps. 20 pt question 1. individuals compete for resources 2. the traits within a population vary and are heritable 3. individuals most adapted to their environments have a better chance of surviving to reproduce 4. individuals can produce more offspring than can survive 5. traits acquired during an individual's lifetime are heritable

How do you date a sample of rock that you suspect as being one of the earliest on earth

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

What are the 3 types of artificial cloning