Hemophilia is caused by a(n) a. recessive allele on the x chromosome. b. extra chromosome. c. dominant allele. d. codominant allele.

Microorganisms are involved in each of the following processes excepta. smog production. b. food production. c. infection. d. o2 production. e. decomposition of organic material.

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen