____ may have evolved from aerobic bacteria and ____ may have evolved from photosynthetic cyanobacteria that were engulfed by predatory prey prokaryotic cells.
Mitochondria; chloroplasts
Answer:
In order:
- Animal
- Prokaryote
- Plant
- Virus
Explanation:
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<u>Calcium carbonate:</u>
The calcium carbonate is found in sea shells and the bones of sea creatures. And it is settled on layer of ocean. The pH level can be equilibrium with atmospheric 
. There is constant concentration of in the water.
The limestone and calcium carbonate is present in the rocks, streams, lakes is helps to maintain the constant pH in the minerals present in the rock react with excess acid in the water.
When the acids or bases react with the calcium carbonate ,there is the excess change in the pH. The mixture of calcium carbonate ions in the water to prevent the damage in acid rain.
Answer:
Option (2) and (5).
Explanation:
RNA is present as a genetic material in some viruses only. RNA is a single stranded molecule that can be found in the nucleus as well as cytoplasm. The nitrogenous bases present in RNA are adenine, uracil, guanine and cytosine.
RNA contains ribose sugar in its structure. The translation of RNA occur in the cytoplasm by the process known as translation.
Thus, the correct answer is option (2) and (5).
Explanation:
The responsibilities of a Meteorologist include analyzing and interpreting meteorological data, issuing severe weather warnings, and broadcasting the weather forecast over television or radio
