The answer i got is B.a 3-base insertion
Four daughter cells i’m assuming
Explanation:
It is less dense when frozen than when it's a liquid.
Water freezes at 0°C, therefore the water molecules form a lattice crystalline structure maintained by hydrogen bonding. This Ice formed is less dense than water because the orientation of hydrogen bonds causes molecules of the ice to push farther apart hence lowering its density.
It takes a lot of energy to raise the temperature of water.
Specific heat capacity is the energy is takes to raise 1 mole of a substance to °C. For water, its specific heat capacity = 4.18 kJ/kg°C
Water molecules sticks to each other.
Forces of cohesion is the property of water molecules to stick to each other. Also, Hydrogen bonds are formed between adjacent water molecules because of the positive charged hydrogen end of one water molecule attracts the negative charged oxygen end of another water molecule.
It is a good solvent because both polar and nonpolar molecules dissolve in it.
Water is a univeral solvent because it dissolves a lot of solute unlike any other solvent. Water does not dissolve non-polar molecules because no hydrogen bond can be formed between them.
Chordates<span> are eucoelomate deuterostomes, and probably share a common ancestor with </span>echinoderms<span>. Three important characteristics unite the Phylum </span>Chordata<span>. At some point in their life cycle, all </span>chordates<span> have a notochord, a dorsal hollow nerve cord, and pharyngeal gill slits.</span>
<u>Answer:</u>
In ecology, catastrophes permanently alter the physical structure of the existing environment.
<u>Explanation:</u>
- The ecological disturbances include flood, strom, plague, fires, earthquakes, tsunami, volcanic eruptions, climatic change and impact of humans on the environment like deforestation ,nuclear testing etc.
- These factors can have a visible impact on the structure of the earth and permanently alter the environment.
- The visible effects of these disturbances are global warming, extinction of selective species, change in the course of rivers, submergence of coastal areas, sudden movement of the tectonic plates and formation of sudden cracks on the earth's crust.