African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and over fishing by humans. over fishing depletes the food supply of african penguins.

Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit.there is a precise compatibility between the active site and the lactose molecule.specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed.reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.

Clownfish lay hundreds of eggs but only 10% to 15% survive into adulthood

Which if the items below would describe the genotype of an individual? a.green eyes b.hair color c.gg d.g1