African elephants flap their large ears to cool off. what biology theme does this phenomenon represent?

How many variables are altered in a good experiment? a.1 b.0 c.2 d.3

Land conservation is a worldwide priority. there are several methods to prevent the loss of land due to a variety of reasons. which method is not a way to conserve land? a) sea walls b) rainwater harvesting c) limits on clear cuts of forests d) cut and burn methods of clearing land

Identify the structures ! 20 points