Answer:
Lactase
Explanation:
Lac operon (lactose) is degraded to glucose and galactose by three enzymes :beta galactosidase, galactoside permease and thiogalactosidase transacetylase.
He was a close friend to Charles Darwin so he helped him out in creating the theory of evolution so I would say C: He developed the idea of inheritance of acquired characteristics.
A star's brightness is determined by the distance away from earth.
Emperor penguins leave and stay for winter months.
