1. A massive object can distort the light of more distant objects behind it through the phenomenon that we call . 2. are defined as subatomic particles that have more mass than neutrinos but do not interact with light. 3. The of spiral galaxies provide strong evidence for the existence of dark matter. 4. Models show that the of the universe is better-explained when we include the effects of dark matter along with the effects of luminous matter.

In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution. b.)biological evolution states laws that are part of mendel’s theory of genetics. c.)mendel’s genetics replaced darwin’s entire concept of biological evolution. d.)biological evolution is a law that explains why all genetics exist.