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SOVA2 [1]
3 years ago
15

The clonal selection theory implies that:

Biology
1 answer:
natima [27]3 years ago
3 0

Answer:

Antigens activate specific lymphocytes

Explanation:

The clonal selection theory (also named the theory of antibody activation) is used in inmunogenetics to understand the functions of the lymphocytes in the immune system. From this theory is it possible to understand the vast diversity of antibodies in the blood during the initiation of the immune response

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Which statement describes Redi's experiment, which helped disprove spontaneous generation?
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He examined covered and uncovered meat to determine that maggots came from eggs.

Explanation:

Prior to Redi's experiment and other supporting experiments, it was formerly believed that life could emanate from non-living things, for example, the generation of maggots from rotting meat.

In 1668, a scientist called Francesco Redi disproved the idea of spontaneous generation. He did this when he experimented that the maggots from meats are only as a result of eggs laid by flies when they perched on the meat.

He placed the meat in two jars; an uncovered jar and another in a covered jar with a cloth, after several days, the uncovered jar had maggots on the meat, while the covered jar had no maggot on the meat, but on the cloth. With this experiment, he was able to demonstrate that the maggot arose from the eggs of the flies, not the meat itself which is nonliving and hence, disproved the idea of spontaneous generation.

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Biology students are examining the diagram below, which shows four vertebrate embryos at the same stage of development. The stud
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The students are asked, how do the embryos provide evidence for organic evolution.

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