Two true-breeding stocks of pea plants are crossed. one parent has red, axial flowers and the other has white, terminal flowers; all f1 individuals have red, axial flowers. the genes for flower color and location assort independently. if 1,000 f2 offspring resulted from the cross, approximately how many of them would you expect to have red, terminal flowers?

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.

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Why do we perceive objects as retaining their brightness under different lighting levels?