Evolution is sometimes a controversial topic. Write an essay (minimum 5 short paragraphs) including the following: What is your opinion about evolution?
Do you think there should be a controversy?
Do you think alternatives to evolution should be taught in schools?
Why or why not?

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.