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Answer:</h2><h2>
Cells exist by themselves such as bacteria....</h2>
Whilst Virus are non loving infectious particles and need a living host to reproduce.
Answer: Directional selection
Explanation:
In the population genetics, directional selection is the mode of selection during which the extreme phenotype are favored more than the other phenotype.
This causes the allele frequency to shift towards the time in the direction of that particular phenotype.
Here, in the question the acid tolerant plant species is favored over the other phenotype.
Hence, the correct answer is option D
The correct answers are:
A. People enjoy cruise vacations;
B. People need to cross the ocean;
E. People need to earn a living;
The vessels that are going through the ocean waters are both very useful and damaging in the same time, depending on the perspective. From one side, lot of people use them as a mean of traveling from one side to the other side of the ocean, millions of people enjoy going on vacation on the ocean/sea cruises, and also millions of people are employed and make a living from those vessels. On the other hand, all of the sewage from those millions of people is released into the ocean waters, thus causing pollution of the waters, which effects the marine life and its well-being.
Cells clump together during a process called agglutination as a result of the accumulation of antigens and antibodies.
Immune complexes are created when soluble antigens are brought together by the appropriate antibody molecules, and they become visible when they are big enough to precipitate out of the solution.
- The interaction between antibody molecules and the associated antigen molecules causes both agglutination and precipitation processes.
- Agglutination, on the other hand, is the clumping of cells that occurs when one antibody binds several antigens at once.
- Contrarily, precipitation occurs when soluble antigens and soluble antibodies interact to form a clear, insoluble substance known as the precipitate.
- Agglutination takes place when a target antigen, also known as isoagglutinin, interacts with a corresponding antibody in the presence of an electrolyte at the right temperature and pH, leading to the development of apparent clumps or aggregates.
- Precipitation happens when an electrolyte, an antigen, and a soluble antigen interact at the right temperature and pH to create cross-links or precipitates that sink to the bottom of the solution.
learn more about agglutination here: brainly.com/question/13022582
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Inside each cell, genes make up a blueprint for protein production that determines how the cell will function. ... These cellular power plants have their own genome and do not recombine during reproduction. Chromosomes. Chromosomes carry hereditary, genetic information in long strings of DNA called genes
