<span>B. phytoplankton
Hope I helped!
~ Zoe</span>
The purines have two rings in their structure while the pyrimidines have hust one
Answer:
D. The first object is not-matter, and the second object is matter.
Explanation:
The first object is gravity, this force pulls things toward the ground. The second object is something I don't know, but it is matter.
hope this helps.
The options attached to this question are given below:
A. Their masses are always equal.
B. Each element always contributes the same number of atoms.
C. Atoms of different elements always combine in the same way.
D. Their volumes are always equal.
ANSWER
The correct option is C.
John Dalton was an English Chemist, he was the one who proposed the statements that are called Dalton's atomic theory. The theory is made up of five main points, they include the following:
1. All matters are made up of atoms.
2. Atoms of the same elements are identical.
3. Atoms of different elements vary in size and mass.
4. Compounds are formed when elements combined in whole ratios.
5. A chemical reaction result in rearrangement of the atoms in the reactants to form products.
Dalton atomic theory has been extensively revised.
His breakthrough was the discovery of evolution.
