Which of these is a cause of variation in a population that is purely due to environmental factors?
AQA GCSE · Biology 8461
Variation and evolution:練習問題
その場で採点される選択問題 5 問と、解説つきの記述問題 2 問。すべて「Variation and evolution」からの出題です。
Variation in a population can lead to the formation of new species. What are the three primary causes of variation in individuals?
Which statement best explains why Charles Darwin's theory of evolution was only gradually accepted by the scientific community?
What is a major risk associated with selective breeding in plants and animals?
In genetic engineering, what is the specific role of a vector?
Explain how a mutation can lead to a relatively rapid change in a species if a significant environmental change occurs.
まず自分で答えを書いてから、解説と照らし合わせましょう。
Antibiotic resistance in bacteria is a significant concern for modern medicine and provides clear evidence for the process of evolution.
a) Describe how a population of bacteria can develop resistance to a specific antibiotic through the process of natural selection.
b) Explain why the rapid rate of reproduction in bacteria (binary fission) makes it easier for scientists to observe their evolution compared to multicellular organisms like humans.
c) List three measures that can be taken to reduce the rate of development of new antibiotic-resistant strains of bacteria.
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