The above picture is cells of an onion root tip. The majority of the cells are in Interphase because that is the longest phase of the cell cycle but there are several that were forever frozen in a phase of mitosis. Count how many cells you see in each of the following phases of Mitosis: Prophase-

Metaphase-

Anaphase-

Telophase-

Which organelle releases chemicals that break down large food particles into smaller ones?

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.

Which pair of sentences is describing the same velocity? a. a car is parked. a car is moving in circles. b. a bus drives 40 miles per hour north. a truck drives 50 miles per hour north. c. a boy walks east at 6 kilometers per hour. a girl walks west at the same speed as the boy. d. valerie rides her bike south at 8 kilometers per hour. owen jogs south at 8 kilometers per hour.