O que são eritrócitos?

A principal função dos glóbulos vermelhos, ou eritrócitos, é transportar oxigênio dos pulmões para os tecidos do corpo e dióxido de carbono como um produto residual, para longe dos tecidos e de volta para os pulmões. A hemoglobina (Hgb) é uma proteína importante nos glóbulos vermelhos que transporta oxigênio dos pulmões para todas as partes do corpo.

Explanation:

The main job of red blood cells, or erythrocytes, is to carry oxygen from the lungs to the body tissues and carbon dioxide as a waste product, away from the tissues and back to the lungs. Hemoglobin (Hgb) is an important protein in the red blood cells that carries oxygen from the lungs to all parts of our body.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

genetic variation will increase because of a new habitat and food source.

explanation: