An atom of element a has 64 protons. what would the element's atomic number be?

Which kind of aquatic ecosystem does the photograph most likely show? a. marsh b. swamp c. lake d. river

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

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.