Immersion Oil Is Necessary When Using the 100x Objective on a Compound

question 53

Multiple Choice

Immersion oil is necessary when using the 100x objective on a compound light microscope

• A)to lubricate the objective.
• B)to prevent the slide from scratching the lens.
• C)otherwise the image will be fuzzy.
• D)otherwise too much light is lost to refraction.
• E)otherwise too much light is lost to refraction and the image will be fuzzy.

Distinguish between the contributions of Alfred Russel Wallace to biogeography and misconceptions about his work.

Understand the sequence of biomes encountered along longitudinal gradients and how they reflect underlying environmental gradients.

Apply knowledge of climatic patterns to identify specific biomes in given geographic contexts.

Understand the principle of population control and factors affecting population size.

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