A certain species of caterpillar has bright colors that signal that it produces a highly poisonous substance. Why is this signal important to natural
selection?
A. Predators will know that this caterpillar is a good source of food,
B. Predators that ignore the markings will die from the poison.
C. The bright colors help the caterpillars find each other and mate,
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D. The bright colors will make it easier to find this caterpillar.

Every compound can be represented by a chemical formula. a chemical formula is the set of symbols showing the elements that make up a compound and their proportions. water’s chemical formula is h 2 2 o. that means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. a molecule is a group of two or more atoms bonded together. molecules can range in size from two to thousands of atoms. a molecule of a compound is the smallest unit of that compound. every molecule of water has all the physical and chemical properties of water. that’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! which of the following is a true statement? a every molecule of the same compound will have different properties. b every molecule of a compound has the same proportion of elements. c molecules can be physically separated into smaller units of a compound. d molecules cannot be represented by chemical formulae.

What happens during the experiment stage of the scientific method

Describe the relationship between isotonic solutions, equilibrium, and water movement into and out of a cell.