CAN SOMEBODY PLEASE HELP ME!!??

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.