Answer:
Scientists define density as the mass of a substance per unit volume. The word “per”
signals that thinking about density requires thinking about a relationship. It is the relation
between the mass (or weight) of one unit of a material and the volume of that one unit.
Density cannot be directly perceived or measured. It must be inferred from the
relationship of the mass and volume. However, it can be determined by calculation
which is how many schools teach it. To calculate density, you first measure the weight
and volume of an object precisely, then you divide the mass by the volume (i.e. d=m/v,
density equals mass divided by volume). So for example, the density of water is 1 gram
per cubic centimeter because a volume of 1 cubic centimeter of water has a mass of 1
gram. A substance which has a mass of greater than one gram per cubic centimeter
has a density greater than 1.0 gram per cubic centimeter; a substance which has a
mass of less than one gram per cubic centimeter has a density of less than 1.0 gram
per cubic centimeter.
Explanation:
Answer:
C. Water will move into the cell through osmosis. The salt and water concentrations will become similar inside and outside the cell.
Explanation:
Osmosis is the movement of water from its higher concentration to the lower concentration through a semi permeable membrane. Here, the cell have higher salt concentration and lower water concentration as compared to its outside. Since cell membrane is semi permeable, salt cannot pass through it. So, water will move into the cell through osmosis to equalize the salt and water concentration on either side of cell membrane.
Answer: C
Explanation:
Hi, the answer to this problem is C.
This is because it is asking for the complementary strand.
Basically, the nucleotide A goes with T, and C goes with G, and both vise versa.
Since this is DNA, A goes with T.
So you would match it up. For the first one, we have C. That means for the first letter of the correct answer, it should be G. Do this until you get through the whole sequence, and eventually, you will get the answer C.
Hope this helps!
The answer is A.True but they are not the only ways in which this can occur.
Answer:
Air will become more humid
Explanation:
due to the cooling of the air