Answer: <u>Option C
</u>
Animals moving in packs or flocks, try to utilize the energy efficiently. The same case is with birds moving in V shape. They use the energy of the air around them, so that air pressure could help them fly with less input of energy. V shape pattern is more aerodynamically energy efficient.
Also, while flying there are no chances of finding mates for reproduction, so option A and B are incorrect.
When selecting a vitamin-mineral supplement, one should be careful to choose one that has nutrient levels that are less or equal to the RDA, but not exceeding it. The supplement is designed to provide a variety of nutrients that are also found in food. They are often called multivitamins and come in form of chewable tablets, pills, liquids and powders.
dont tell me why but, what does diatoms have to see with petroleum? well, i think is "e" cause it has almost no relationship according to my thoughts
Answer: oligotrophic
Explanation:
A newly formed lake is most likely to be oligotrophic. The oligotrophic lake is expected to have high oxygen concentration in water and low organic and inorganic nutrient content. This condition can only support the growth of small number of plants and algae. The overall growth rate of flora and fauna will be low hence, the biodiversity of a region will be low.
Algae are called autotrophs because they can create their own food using only carbon dioxide.