Counter current flow is the opposite movement of water against the flow of blood in the fish's gills.
Answers: option b. supplements
Explanation:
Supplements are only needed when you have a special defficiencies on your intake of nutrients on as consequence of an organic disorder.
Healthy athletes who are on a balanced diet are already having all the vital nutrients, needed from their diet.
Athletes with intense activity do need vitamins, carbohydrates and fats which are on the regular diet: fruits, vegetables, carbohydrates and fats. Eating healthy provide you the nutrients your organism needs to obtain energy and create the muscles to perform well as athlete.
The postorbital is a triradiate bone that forms a part of the dermal skull root.
<h3>What is the postorbital bone?</h3>
The postorbital is a triradiate bone that is found close to the occipital region/area of the skull.
The postorbital bone is well known to link the frontal bone from the skull to the zygomatic arch in the head.
The postorbital bone is formed by a delicately curved bone that fails to reach the zygomatic head arch.
Learn more about postorbital bone here:
brainly.com/question/26931079
Answer:
Because of the tilt of the earth on its axis. When the North Pole is tilted towards the Sun, the northern hemisphere experiences summer solstice. At this time, since the south Pole is tilted away from the Sun, the southern hemisphere experiences winter solstice.
That is why, When it is summer in the northern hemisphere, it is winter in the southern hemisphere. It's all because the Earth is tilted on its axis.
