Answer:
A. Water molecules have strong intermolecular attractions.
Explanation:
Water molecules have strong intermolecular attractions due to the presence of hydrogen bond between oxygen and hydrogen atoms. This hydrogen bond is present between hydrogen of one water molecule to the oxygen of another water molecule. This hydrogen bond is weaker than covalent bond so that's why it can be broken down and water is converted into vapours form by heating.
I believe it is 13 m towards the origin position, or just 13 m south.
Answer:
Explanation:
Protozoa make humans sick when they become human parasites. Trypanosoma protozoa cause Chagas disease and sleeping sickness. Giardia protozoa cause giardiasis, and Plasmodium protozoa cause malaria.
Vessel walls are very thin because they let ease of transfer of molecules to these tissues. This is why <span>capillaries and not arteries or veins are found in alveolar, nephrons, and villi.</span>