Answer:
Ocean desalination, Using nuclear fusion as an energy source and using stem cell technology to cure disease.
Explanation:
Ocean desalination is the major problem that occurs due to removing of nutrients that is present in the ocean water because of human activities. These nutrients are essential for the marine animals so for solving this problem, we should use other alternative energy resources in order to reduce ocean desalination. Using nuclear fusion as an energy source is a good idea but it can't be implemented on the earth because it requires 100 million degrees Celsius which is impossible to generate. Using stem cell technology to cure disease is a great idea which can cure many diseases in the human body. This available technology is used by replacing damaged cells with the healthy cells.
Answer:
(B) Thomas Malthus, who studied population growth
Explanation:
Thomas Malthus published his essay entitled "An Essay on the Principle of Population As It Affects the Future Improvement of Society" in 1798. Accordingly, the capacity of populations to increase geometrically leads to struggle for food, shelter and other resources. These negative processes put a check on the population size.
Darwin was influenced by the idea of ability of populations to exhibit exponential growth and struggle for existence. On the basis of the essay by Thomas Malthus, Darwin proposed that genetic variations allow only individuals with beneficial traits to survive the struggle.
The heads of the phospholipids, which are positioned outwards on both layers, are hydrophilic. The trails of both layers are hydrophobic and face inwards, and protected by the outer layers.
Answer:
In biology, students study a variety of life processes and learn how different organisms meet the challenges of living in their environment. Major biological concepts for student focus include homeostasis, energy transfer and use, the relationship between structure and function, and change over time.
Explanation: