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Dna i think im not sure if it is right?
Explanation:
Answer:
During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. ... The other type of cell division, meiosis, ensures that humans have the same number of chromosomes in each generation.
Explanation:
Smoking is bad perharps, but it can cause a big effect on lung growth. Which can lead to respiratory problems and infections, shortness of breath and can cause a big effect when playing any type of sports. hope this helps.
Cells lining the small intestine are specialized for absorption of nutrients. their plasma membrane <span>has </span><span>microvillus </span>(plural:<span> m</span>icrovilli)<span> which</span><span> increase cell surface area. These are cellular membranes that are microscopic in nature that increases the surface area of the cell for diffusion and minimize increase in volume.</span><span> </span>
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Since the origin of humans on this planet, they have been trying their best to make their lives easier on this planet. In doing so, human activities have some how heavily damaged the Earth. Many day to day activities of humans are dangerous for the Earth.
Some of the consequences of human activities on the Earth's fresh water are :
Extinction of many aquatic species:
The water consumed by humans comes from the fresh water oceans. As the population of humans is increasing enormously, the water from the oceans is being consumed at dangerous levels. This has caused many species of aquatic animals to become extinct or to be at a verge of extinction as they do not have a habitat to survive or reproduce.
Pollution:
Many heavy industries, house sewage, farmers dispose waste into the fresh water. Hence, killing aquatic animals and polluting the fresh water ecosystems.
