Algae provides more energy to the Box Turtle population.
If you see the bottom of the chain, Algae, whether the turtles eat it or not, also provides energy/food/resource for other forms of energy the turtles can consume, it's the base of the chain.
The answer is not aquatic insects because they do not supply as energy to as many sources as algae.
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The most important mineralocorticoid regulator of electrolyte concentrations in extracellular fluids is Aldosterone.
Aldosterone hormone is produced by the adrenal gland, it acts in the functional unit of the kidneys to aid in the conservation of sodium, secretion of potassium, water retention and to stabilize blood pressure. The hormone causes water to be absorbed along with sodium ions which increases the blood volume and therefore blood pressure. It indirectly regulates blood levels of electrolytes and helps to maintain the blood pH.
I think the answer is D. Both a and b
Answer:
The correct answer is option A. "directional selection".
Explanation:
Directional selection is a type of natural selection at which traits with extreme characteristics are selected over traits with medium characteristics. In this case, a long-term climatic change resulted in all seeds that are the fountain of food for finch becoming hard. This will result in a directional selection on bill size in the finch population, where large-billed birds will be selected over small and medium-billed birds.