A nucleus is the cell's control centre but the cell membrane is what controls what comes in and out depending whether it is selectively permeable or semi permeable; therefore, the answer would be C because it take control and manages everything in the cell
Some scientists believe it was due to a sudden meteor impacts and others believe it was a gradual build up of a couple things like volcanic activity, climate change and the meteor impact was the final blow for total destruction.
Answer;
B. improved ecosystem health
Explanation;
-Surface mining is a method of extracting minerals near the surface of the Earth. The three most common types of surface mining are open-pit mining, strip mining, and quarrying.
-The environmental impact of mining includes erosion, formation of sinkholes, loss of biodiversity, and contamination of soil, groundwater, and surface water by chemicals from mining processes.The environmental effects of surface mining include;
- Habitat destruction
- Soil erosion
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Air pollution from dust particulates
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Pollution (especially from sediments)
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All surface mining techniques negatively affect the environment, though some methods are more damaging than others.
The correct option is D.
Antibiotic resistant is said to occur, when a particular antibiotic has lost its capacity to effectively eliminate or control the growth of a particular type of bacteria. In this case, the bacteria continues to grow and multiply in the present of the antibiotic drug. Antibiotic resistant usually occur when a bacteria has develop a variation that makes it possible for it to inactivate the antibiotic drug that is used against it. A bacteria that is formerly susceptible to a particular antibiotic may later become resistant to the same drug by developing variations that inactivate the antibiotic drug that is administer to destroy it.
Window glass is mostly made of the mineral quartz. Good luck!
