Question

The snakes are included under
A. Saprophytes
B. Primary consumers
C. Second trophic level
D. None of the above

Answer 1

Hint: The Reptilia class, or reptiles, historically included a diverse group of animals: turtles, snakes, lizards and crocodiles, alligators, and caiman. There are over 6,000 species of reptiles. There is a transfer of energy in unidirectional at each trophic level.

Complete answer:
The carapace is called the exoskeleton of the dorsal region of the body and the plastron is called the skeleton of the ventral region of the body. The jaws are horny, and there are toothless, beak-like jaws. The sternum is not present. Both living and dead, both species, are included in this order. They are terrestrial, aquatic, and freshwater creatures.

Osteoderms are called bony plates found on the body. Nails on the digits are found. In the digits for swimming, the web or membrane is located. On the body, arms, and tail, scales are found. For their food needs, all animals depend on plants (directly or indirectly). They are referred to as consumers and often as heterotrophs. If they feed on producers, they are referred to as primary consumers, and if they feed on other species, which in turn feed on plants, they are referred to as secondary consumers.
One food chain could be in a terrestrial environment—
Grass -> Grasshopper -> Frog -> Snake -> Falcon/ Eagle/ Peacock.

In this situation, insects will be primary consumers, frogs will be secondary consumers, snakes will be tertiary consumers, and quaternary consumers will be birds such as falcon/eagle/peacock. The mechanism of chemoheterotrophic extracellular digestion involved in the processing of decayed organic matter is saprotrophic nutrition. The primary consumers are the species that eat the producers. They appear to be small in number, and several of them remain. The secondary consumers are called carnivores who eat herbivores.

Hence, the correct answer is Option D.

Note: In most cases, dry scaly waterproof skin, digits of all four limbs armed with claws, well-developed air-breathing lungs, incomplete 4-chambered heart, males with copulatory organs, amniotic and laid-on-land eggs, internal fertilization, no larval stage.