Birds have hallow bones . explain how this is adaptive ? !

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

Rotenone is an insecticide that is toxic

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.