Answer:
Option (A).
Explanation:
The substance can exist in three different forms known as solid, liquid and gas. These forms of the substances are differentiated on the bases of the inter molecular distance, force of attraction and fluidity.
Gases nether have fixed volume nor the fixed shape and can change itself according to the place in which it is kept. The kinetic molecular theory of the gases states that the gases are always in the rapid and random motion. This is possible due to the presence of the least force of attraction among the particles of the gases.
Thus, the correct answer is option (A).
Answer: replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell. ... Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.
Explanation:
The answer is <span>Time is the independent variable, and the number of birds is the dependent variable. </span>
<span>An independent variable is variable that is not affected in the experiment. It is what experimenter controls. On the other side, a dependent variable is called dependent because it depends on the independent variables. It is what is affected during the experiment.
In Sam investigation, he controls time - he counts birds at 6 a.m. and 6 p.m. So, time is the independent variable. The number of birds is affected during the experiment, so it must be the dependent variable.
</span>
Answer:
The correct answer is A.
Explanation:
A mutagen changes the level of mutations that occur in the DNA either by affecting it physically or chemically. This helps researchers create different organisms with altered phenotypes according to what the research needs so that the genes can be investigated further under a controlled environment.
So the answer is A.
I hope this helps.
Answer:
71% of earth os covered by water