In order to retain heat, what occurs in the skin on a cold day? a. blood vessels of the dermis constrict. b. blood vessels of the dermis dilate. c. blood vessels of the epidermis constrict. d. blood vessels of the epidermis dilate.

Which statement explains how gravity and intertia work together

What characteristic does giardia have that makes it a protist, a characteristic that all other protists have? a. it is a unicellular eukaryote. b. it is a eukaryote that is not an animal, a plant, or a fungus. c. it is parasitic and has flagella. d. it spends part of its time in a body of water.

Which property is best to use when determining the strength of an ionic bond in a solid lattice energy conductivity hardness solubility