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At which level does natural selection act?

ACellular level

BSpecies level

CPopulation level

DOrganism level

Answer:

C. Population level

Read Explanation:

  • Natural selection is a phenomenon that acts at a population level.

  • Natural selection does not create mutations or variations rather it leads to the extinction of individuals who could not adapt to the changing environmental conditions.

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Which of the following is responsible for an increase in population density?

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  1. To solely identify individuals who performed poorly during the exercise.
  2. To enable the quantification of results and highlight both strengths and weaknesses.
  3. To provide actionable insights for improvement in future exercises and real-world responses.

    According to India's tropical cyclone classification, which statement is true?

    1. A Very Severe Cyclonic Storm has wind speeds between 64 to 119 knots.
    2. A Super Cyclone is classified when wind speeds exceed 119 kmph.
    3. A Super Cyclone is characterized by wind speeds greater than 119 knots.
      Silviculture is the branch of botany in which we study about _______________

      Choose the correct statements concerning the characteristics that define an epidemic.

      1. An epidemic requires the disease to be entirely new to the affected region, never having occurred there before.
      2. It involves an unusual increase in the number of cases, exceeding what is typically expected for a given time period or geographical area.
      3. An epidemic always spreads globally, irrespective of initial localized increases.
      4. The identification of an epidemic often relies on epidemiological surveillance data indicating a deviation from baseline disease activity.