Answer:
Nicotine
Explanation:
Tobacco smoke contains numerous toxic chemicals including organic carcinogens such as polycyclic aromatic hydrocarbons and aromatic amines, inorganic carcinogens such as polonium 210, and arsenic and toxic alkaloids such as nicotine. Nicotine extracted from tobacco has also been used as an insecticide.
PLEASE MARK IT AS BRAINLIEST
Answer & Explanation:
There are often not more than one or two independent variables tested in an experiment, otherwise it is difficult to determine the influence of each upon the final results. There may be several dependent variables, because manipulating the independent variable can influence many different things.
Stroke Volume
Heart Rate
Cardiac Output
Systolic
Diastolic
Volume and Pressure of Blood Cells
I believe the barometer is what collect rain water so it would be getting full
Carbon is the main atom used in the formation of molecules that build cells using the DNA based reproduction system. The carbon atom have affinity to bond to other atoms, and is widely available in Nature and is a stable atom.
Carbon forms four bonds in a tetrahedral arrangement around the carbon. This allows a carbon to bond to carbon or other elements with a great variety of shapes. 99% of the mass of a living organism, such as a human, is made up of just six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus with carbon making up the linking element between all others.
Carbon can from a chain that is linear or branched or form ring structures as well as bonding with other functional groups containing other elements from the periodic table.
