Which step is a part of internal respiration? Oxygen rich blood is taken up by the tissues.

Air is inhaled through the nostrils.

Air is exhaled through the nostrils.

Gaseous exchange of oxygen and carbon dioxide occurs at the alveoli.

The correct serving size for a complete protein is the size of your fingers. true false

Aresearcher lyses a cell that contains nucleic acid molecules and capsomeres of tobacco mosaic virus (tmv). the cell contents are left in a covered test tube overnight. the next day this mixture is sprayed on tobacco plants. we expect that the plants would ) develop some but not all of the symptoms of the tmv infectionb) develop the typical symptoms of tmv infectionc) not show any disease symptomsd) become infected, but the sap from these plants would be unable to infect other plants

Li believes in using traditional remedies. she firmly believes that if she balances her and she will stay healthy.