In the 1700s, a French scientist, Antoine Lavoisier, gained new experimental information by reacting a metal and an acid. His observation of the results seemed to show that much of the metal had been lost in the chemical reaction. Upon weighing the products, the total amounts of materials had not changed during the reaction. This research resulted in the law of conservation of mass. This law also applies to biology, because the materials we are made of are that change forms, but aren't truly lost through biochemical reactions.
A. matter
B. isotopes
C. energy
D. metals
E. solutions
A. matter
You might also like to view...
If a cell had four sets of chromosomes before
mitosis, how many would it have after mitosis?
a. 2 sets b. 4 sets c. 8 sets d. 0 sets e. none of these because a cell can’t have 4 sets of chromosomes
What key advantage do angiosperms have over gymnosperms?
A. Angiosperms go through alternation of generations. B. The angiosperms can produce spores which are more stable than seeds from gymnosperms. C. Angiosperms produce pollen and do not require water to reproduce. D. Angiosperms can produce flowers and fruits to aid in seed dispersal. E. Angiosperms have a vascular system, which allowed them to grow taller.
Distinctly different groups within a species are known as
A. varieties. B. breeds. C. subspecies. D. All of these answers are true.
Most of the large, fast-flowing rivers in the northwest United States are blocked by human-made dams. Water is directed through pipes in each dam that lead to hydroelectric generators. The generators in these dams create electricity as water rushes past them. This is most similar to which of the following metabolic processes?
A) the splitting of glucose during glycolysis B) the release of carbon dioxide during the citric acid cycle C) the transport of electrons by NADH D) the passage of hydrogen ions through ATP synthase to make ADP into ATP