Answer the following boxess

given: ∠a and ∠b are supplementary angles.

m∠a=4x−16; m∠b=2x+4

prove: m∠b=68°

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity