Most synthetic polymers are derived from what raw material?

Based on the phylogenetic chart, which three statements are true about the relationship between the organisms? a human is more closely related to a mouse than a kangaroo.a platypus is more closely related to kangaroo than a mouse.a human and a kangaroo share common features because of a common ancestor.a platypus and a mouse are more closely related than a platypus and a kangaroo.a kangaroo and a mouse are more closely related than a mouse and a human.

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this