The term intrinsic myogenic indicates that the heart muscle is the source of

A) the contractile force for pumping.
B) a hormone that regulates blood volume.
C) the electrical signal that stimulates heart contraction.
D) receptors that stimulate blood pressure reflexes.
E) stem cells that repair damaged heart tissue.

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.

The carrier molecules of the electron transport system are located in the

Consider the equation s + o2 ? so2. what is the product? question 3 options: s so 2 s + so 2 o 2