Which of the Following Is an Example of Primary Innovation

question 3

Multiple Choice

Which of the following is an example of primary innovation?

• A)the discovery that when clay is heated to a certain temperature it will become permanently hard
• B)the discovery that meat cooked over an open flame might cause some cancers
• C)the realization that meat when exposed to heat will become softer and easier to chew
• D)the discovery of the principle of the wheel
• E)all but b

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Definitions:

Intercellular Spaces

Gaps or areas between the cells of plants or animals, allowing for the exchange of gases or the passage of nutrients.

Facilitated Diffusion

A process in which substances move across cell membranes with the help of carrier proteins, without the expenditure of energy.

Osmosis

The diffusion of water through a semipermeable membrane from a region of low solute concentration to a region of high solute concentration.

Simple Diffusion

The movement of molecules from an area of high concentration to an area of low concentration without the need for energy input, often across a permeable membrane.