Which of the Following Are Discoveries That Were Made in the Nineteenth

question 4

Multiple Choice

Which of the following are discoveries that were made in the nineteenth and twentieth centuries?

• A)Joseph Lister was the first to use an antiseptic during surgery to kill germs.
• B)Ernst von Bergmann developed aseptic technique.
• C)Louis Pasteur proved that microorganisms cause disease.
• D)Wilhelm Roentgen discovered x-rays.
• E)All of the above

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Definitions:

Grasses

Members of the Poaceae family, which are key agricultural and ecological species, known for their long, slender leaves and roles in ecosystems and food supplies.

Basal Cell

A type of cell found in the lower layers of the epidermis that continuously divides to form new cells, replacing the old ones that die and are shed.

Embryonic Development

The process by which an embryo forms and develops, from fertilization to the fetus stage.

Cotyledons

Embryonic leaves in seed-bearing plants, forming the first leaves to appear from a germinating seed.