MRNA is the correct answer
Correct answer: C). Evolution by natural selection, Galapagos finches
Charles Darwin gave the theory of natural selection in the year 1835 when he visits Galapagos Islands.
There he found several species of finches are adapted to different environmental niches. They have a different shape of the beak, food source they eat and the way they captured the food.
He observes that species vary from island to island, and based on these observations he gave the theory of natural selection.
Answer:
A good reason why a desert fox shows this pattern of behavior is to protect themselves from cold conditions since at nighttime, it gets very cold in the desert!
Explanation:
The answer is 'spines to reduce water loss'. Spines are in effect a specialised form of leaf. Obviously, spines have a much reduced surface area compared to a leaf, thereby drastically reducing evapotranspiration. The spines also have an important protective function for the plant. Other adaptions by desert plants would include retaining water (such as succulents), a waxy cuticle on leaves to reduce water loss and closure of the stomata to reduce water loss.
