which of the following is an inference instead of an observation? answer correctly and show how it's correct maybe
a. the squirrel is gathering acorns in his cheeks
b. the boat is sailing on the lake in circles
c. the sun is hot today as it shines down on us at the park
d. deer walked down the path earlier because of the prints in the mud

What statements describe a host organism?

Jason puts an apple on top of an ice pack in his lunch bag lunch time the temperature of the apple has decreased what happens to the molecules in the apple when the temperature of the apple decreases

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.