How did evolution ever lead ostriches to hide their head in the sand when an enemy approaches? How do I turn on more parts of my brain and get smarter? How do nerves control every organ and function in the body? How do trees give earth all its oxygen?​

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

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.

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water