Answer:
Option C = ice is less dense than liquid water because the molecules in ice are further apart.
Explanation:
When water is cooled below 0°C, ice is formed. In ice form water molecules have more hydrogen bonds. When temperature increases, hydrogen bonds between water molecules breaks and water gets melt.
In liquid form water molecules are get closer to each other as compared to the ice form. This is the unusual behavior of water as compared to the other substances in solid form.
In ice form water molecules are strongly bonded but the distance between the water molecules are more or we can say that their are empty spaces present between water molecules that's why ice is less dense than the liquid water.
Density:
It is define as mass per unit volume.
The less dense substance float on the surface of water while the substance more dense than water or sink in it.
For example:
Take the two equal amount of blocks one is made up of styrofoam and one is made up metal. Put these two blocks in to water. The block made up of metal will sink while the other made up of styrofoam will float on the surface of water because of difference in densities. The styrofoam is less denser than water while metal more denser then water.
Answer:
Option-C
Explanation:
The M phase of the cell cycle proceeds in the four phases: prophase followed by metaphase then anaphase, and telophase.
These sub-phases can be easily distinguished as the genetic material move in the cell in various form and the changes become characteristic of the subphases.
During metaphase, the chromosomes are aligned at the center of the cell or at the imaginary equatorial plate. Since it is mentioned that the drug shows its effect when the chromosomes are aligned at the equatorial plate therefore he is referring to the metaphase of the cycle.
Thus, metaphase is correct.
Enzymes have different jobs around the body that are very vital to help the body live. For example they help with digestion, aiding or healing the body, and metabolism. But the main job of the enzyme is to "aid the body" what I mean is if you get cut and you start to bleed it's the enzyme job to get to the wound and help heal it and stop the bleeding. Without the enzyme the body wouldn't be able to last forever.
Hope this helps!
<span>Succession occurs because "organisms gradually change the environment". Organisms change the environment they live in after a disturbance or disaster in their habitat. Ecological Succession is a long-term process, it may take years to decades to change the ecological structure of an ecological community.</span><span />
I think it is D) Both processes involve energy transformations
hope this helps:)
