Which of the following gasses in our atmosphere are considered "greenhouse gasses"? * Select ALL that are correct. You need to choose all correct answers to get credit.

Methane (CH4) - From animal digestion and decomposing dead things
Oxygen (O2) - About 20% of our atmosphere, made by photosynthesis
Nitrogen (N2) - About 78% of our atmosphere, doesn't react with much
Carbon Dioxide (CO2) - From burning fossil fuels, burning plants, and respiration

Name the following: (a) category of pathogen that causes diseases, like common cold and mumps. (b) the microorganism that requires a host to produce.

The earth's oceans are made up of chlorine, and trace elements. a) carbon, oxygen b) oxygen, silicon c) hydrogen, oxygen d) nitrogen, oxygen

In cattle a single gene with two alleles determines fur color the fur can be red white or roan roan fur has both red and white hair which of the following statements is true a the allele for roan fur color is dominant over red and white fur color b the allele for red fur color is dominant over white and roan fur color c the roan and white alleles are expressed independently of the other d the red and white alleles are expressed independently of each other