Ple 1.) what is a function of carbon dioxide ( co2) in the body? a.) regulate the ph of blood b.) adds structure to hair c.) energy source d.) energy storage 2.) what is sodium chloride (nacl)? a.) a protein b.) a carbohydrate c.) an ionic compound d.) a covalent compound 3.) which type of substance is protein? a.) a small molecule b.) a large molecule c.) an ionic compound d.) an ion 4.) which type of substance is calcium phosphate (ca3(po4)2)? a.) it is a small molecule b.) it is a large molecule c.) it is an ionic compound d.) it is an ion 5.) which small molecule makes up about 70 percent of cells? a.) dna b.) fat c.) oxygen d.) water 6.) which of these large molecules are important for energy storage? a.) dna and lipids b.) dna and rna c.) lipids and starches d.) rna and starches

Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).

5points what is term for the process of gathering information through images taken at a distance? o a. global positioning o b. topography o c. remote sensing o d. cartography submit

4. multiple crosses were made between true-breeding lines of black and yellow labrador retrievers. all the f1 progeny were black. when these progeny were intercrossed, they produced an f2 consisting of 91 black, 39 yellow and 30 chocolate. a. propose an explanation for the inheritance of coat color in labradors. b. propose a biochemical pathway for coat color determination and indicate how the relevant genes control coat coloration.