U1.29: 15
susan makes a claim that humans do not evolve because we adapt to situations by changing our technology, not ourselves.
which piece of evidence contradicts this idea?

Amoeba sisters video recap pedigrees

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.

If there is another new infectious disease somewhere in the world, what do you think canadian officials should do