(Please help ASAP) Which statement best explains the difference between water temperature at the poles and water temperature at the equator?

A. Due to Earth's rotation, gyres near the poles flow clockwise.
B. Deep sea vents pump steam into the conveyor belt near the
equator.
C. The sun's rays strike the water at an angle at the poles.
D. The water is denser and saltier near the equator, so it holds more
heat.

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.

The cell membrane controls what enters and leaves the cell. which of the structures in the diagram below is the cell membrane? — f оооо