Question

Identify 'a' and 'b' in the figure given below representing proportionate number of major vertebrate taxa.

Answer 1

Answer is "Amphibians & Mammals"

Explanation:

• Animals of land and water(amphibians) are ectothermic, tetrapod vertebrates of the course Amphibia.They possess a wide assortment of territories, with most species living inside earthly, forestrial, arboreal or freshwater sea-going ecosystems.
• Thus creatures of land and water regularly begin out as hatchlings living in water, but a few species have created behavioral adjustments to bypass this.The youthful by and large experience transformation from hatchling with gills to an grown-up air-breathing shape with lungs.
• Mammals are warm blooded, tetrapod vertebrates that have hair, nurse their young by producing milk, and have a limited number of teeth that are modified to perform different functions. Because they are warm blooded, mammals have to consume more food more frequently and digest it more efficiently than cold blooded animals.
• The production of milk for young accomplishes this same function of providing energy to enable the young to maintain a high and (relatively) constant body temperature.
• Hence, a identify the "amphibians" and b  identify the "mammals".