Which of the following is a correctly balanced equation? a. 2cu + o2 --> 2cuo b. mg + o2 --> mgo2 c. 3kcl + hno3 --> 3hcl + kno3 d. caco3 --> cao + co3

*will mark brainliest to first correct answer* photosynthesis led to increasing levels during the later proterozoic eon? a. oxygen b. water c. carbon dioxide d. none of the above

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?

Which feature would you expect to find in a population in which sexual selection depends on male competition?