Does warm air rise or sink? does cold air rise or sink? need a summary 30 points

Where can you find prokaryotic and eukaryotic cells?

Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit

Pulmonary arteries carry highly oxygenated blood. true or false?