The theory of evolution by natural selection was developed by two famous biologists - Leaving Cert Biology - Question 17(b) - 2022
Question 17(b)
The theory of evolution by natural selection was developed by two famous biologists.
(i) Explain the underlined terms.
(ii) Name both biologists who developed the ... show full transcript
Worked Solution & Example Answer:The theory of evolution by natural selection was developed by two famous biologists - Leaving Cert Biology - Question 17(b) - 2022
Step 1
Explain the term evolution.
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Answer
Evolution refers to genetic change in organisms over time in response to environmental factors. It results in species adapting to their surroundings, leading to variations that may enhance survival rates.
Step 2
Explain the term natural selection.
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Answer
Natural selection is the process by which organisms that are better adapted to their environment tend to survive and reproduce more offspring. This mechanism drives the evolution of species.
Step 3
Name both biologists who developed the theory of evolution by natural selection.
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Answer
The two famous biologists who contributed to the theory of evolution by natural selection are Charles Darwin and Alfred Russell-Wallace.
Step 4
Explain the term genetic engineering.
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Answer
Genetic engineering involves the alteration of genes in an organism. This can include adding, removing, or modifying genetic material to achieve desired traits.
Step 5
Give one example of genetic engineering involving a plant and one example involving an animal.
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An example of genetic engineering in plants is the creation of Bt cotton, which is engineered to express a bacterium's toxin for pest resistance. An example in animals is the development of genetically modified salmon that grow faster than their natural counterparts.
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