Which of the following is the best way to explain how baking a cake or frying an egg is a chemical change? Both are changing size and shape.
Heat is changing the texture of both substances.
Heat is being added to both, causing a phase change.
The end products of both cannot be reversed to their original forms.

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system

How does photosynthesis show the conservation of mass and energy?