unit one topic 6 vocabulary

Question 1

domestic animal

Answer 1

an animal that is no longer wild but has been bred or tamed by humans to perform various functions

Question 2

selective breeding

Answer 2

technique in which individual plants or animals with desirable traits are bred together to develop plants or animals with specific traits also called artificial selection

Question 3

natural selection

Answer 3

a naturally occurring process in which only those organisms with the best traits for survival in an environment survive to reproduce

Question 4

what is the theory of natural selection

Answer 4

1. all organisms produce more offspring than can possibly survive
2. there is incredible variation within each species
3. some of these variations increase the chances of an organism surviving to reproduce
   over time variations that are passed on lead to changes in the genetic characteristics of species