What is a mold? in fossils​

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

Abiology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. which is the least supportive example? a.changes in genetics in human populationsb.antibiotic resistance in bacteria populationsc.pesticide resistance in garden insectsd.changes in the color of the peppered moth population in england

Which fossil organism in whale evolution do you think was the first to live mostly in water? explain your claim with evidence and reasoning?