Question

Choose the feature not association with organism found in tropical deserts
A. Small body size
B. Large surface area relevant to their volume
C. Large body extremities
D. Small surface area relative to their volume

Answer 1

Hint: The deserts, which are typically found in regions between 5 and 30 degrees latitude, are called the tropical deserts. People say that there is the existence of extreme temperature and has sporadic rainfall in such places. We can say that such types of deserts are generally covered with sands and rocks. Due to excessive heat, aridity, and vegetation scarcity, most of the organisms can not survive in such places.

Complete answer:
-In the tropical desert areas, there is extensive heat and scarcity of water.
-Organisms living in those areas adapt to survive in that ecological condition.
-Adaptations such as thorns and succulents in flora help the plant to live without enough water.
-The stems and leaves undergo modifications to perform photosynthesis in the less available water.
-Animals like snakes, frogs, camels, rabbits, etc. also undergo modification in their characteristics to ensure their survival.
-Due to the large surface of the organism, radiation of more body heat per unit of mass occurs, which may be fatal. So, this type of adaptation is not seen in organisms present in tropical deserts.
-Organisms living in tropical deserts have a small body size, large body extremities, and small surface area.
Hence, the correct answer is option B.

Additional Information:
Tropical deserts are the source of natural resources.
-Unique minerals such as sodium nitrate, iodine, borax, calcium, bromine, sodium, and strontium
compounds are located in tropical deserts.
-Organisms living in tropical deserts are banded Gila monster, the armadillo lizard, bobcat, cactus wren, desert bighorn sheep, desert kangaroo rat, javelina, desert tortoise and Mojave rattlesnake, cougar.

Note: Tropical deserts are areas with extreme heat and scarcity of water. Only those organisms can survive, which have unique behavioural and physical mechanisms. Organisms living in those areas adapt to stay in that ecological condition. Organisms living in tropical deserts have a small body size, large body extremities, and small surface area. Large surface area organisms cannot survive in a low desert. Tropic deserts play an essential role in economic development. Many unique minerals are located in tropical deserts.