Nick and Bart climbed a 2000-m mountain. Nick took a 3-km trail, and Bart took a 6-km trail. If Nick and Bart weigh the same, their packs weigh the same, and they walk the same speed, why did Nick have a harder climb?

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.

Which description provides the best objective summary of the article in the passage?

Which is the correct formula for photosynthesis