Answer:
The oxygen atoms of water molecules attract electrons more than hydrogen atoms.
Explanation:
The uniqueness of water as a chemical substance is attriuted to its unique properties. These properties include being a universal solvent, having a high specific heat (temperature moderator), cohesive and adhesive nature etc.
This wonderful properties of water is due to its POLAR nature, which is when a substance has both positively and negatively charged parts to it. This is possible because the oxygen atoms (O) of water molecules attract electrons more than hydrogen atoms (H).
This POLARITY of water molecule is responsible for the HYDROGEN BONDING between water molecules and hence, contributes to the properties of water mentioned in the question (universal solvent, temperature moderator, and cohesive behavior)
Answer:
Upwelling improves the nutrient supply at coastal fisheries as the cold, nutrient-rich water replaces the warm, nutrient-poor surface water
Explanation:
The upwelling is simply the process through which the cold water rises up toward the surface, pushes and moves away the warmer water, until it gets warmer and is pushed by the colder water blow it. The cold water that rises toward the surface is nutrient-rich, while the warm surface water is nutrient-poor. By having the nutrient-rich cold water come toward the surface, the coastal fisheries have great benefit, as the more nutrients there are, the more fish there will be for them to catch.
Phagocytosis is a process where cells can engulf bacteria or food.
<h3>What is phagocytosis?</h3>
Phagocytosis is a process in which cells such as macrophages surround and engulf some type of substance that the body wants to eliminate. Phagocytosis is a type of <em>endocytoses</em>. It is a process that the immune system uses to eliminate pathogens or cellular debris, finishing the material being digested by the cell, seen in processes such as infection.
We also see it in <em>apoptosis</em>, where the macrophages are going to ingest the remains of the apoptotic cell for the elimination of their cellular remains.
Therefore, we can confirm that phagocytosis is a process where cells can engulf bacteria or food.
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Answer is phosphorus, zinc and copper
The correct answers are
a. vaginal ring and
c. oral contraceptives.The vaginal ring is a soft, plastic ring that releases a continuous dose of the hormones oestrogen and progestogen into the bloodstream and prevents pregnancy. Oral contraceptives are also drugs for preventing pregnacy and also contain combinations of the hormones estrogen and progestin )or progestin alone=. Estrogen and progestin inhibit the release of the hormones luteinizing hormone (LH) and follicle stimulating hormone (FSH) which have a role in the ovulation.
