Answer:
The CORRECT ANSWER IS B.
B. Unlike the other countercurrent systems, a countercurrent multiplier system expends energy in active transport.
Explanation:
The countercurrent multiplier system involving the loop of Henle uses up energy in the form of ATP to actively conduct NaCl out of the filtrate in the upper region of the ascending limb of the loop. This energy in the form of ATP that is being used uniquely differentiates a countercurrent multiplier system from the different forms of countercurrent systems.
<span>b. Growth of a tumor
</span><span>The phenomenon of contact inhibition occurs when normal cells doesn's stop dividing when in collision with another cell which triggers cancerous cells.</span>
Why not turn it back I to gas
To avoid nutrient deficiency one must have a balanced diet. A balanced diet would be the one which includes all the nutrients. It includes
Macronutrients: carbohydrates (the source of energy), proteins and fats.
Micronutrients: vitamins and minerals.
One should include in their diet the following things: Cereals, pulses, fruits vegetables, milk, meat, oil and fats. The amount of nutrient intake varies with age and amount of physical activity done.
Because only the chromosomes can be seen in a karyotype, and microdeletions or insertions are mutations at the molecular level, it is virtually impossible to detect such mutations at the chromosomal level.
