What is another way that organic molecules might have arrived on earth?

Which of the following is not an example of conflict between related individuals?

The spermists believed that: the male made the only hereditary contribution to the offspring the male and female traits were blended in the offspring the female made the only hereditary contribution to the offspring the male and the female made equal contributions to the next generation

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous