Problem 94 - Objective Biology for NEET

Question

Tiger, dog and cat are placed in order of (a) Insectivora (b) Carnivora (c) Primata (d) Lagomorpha

Step-by-Step Solution

Answer

Tigers, dogs, and cats are all categorized under the order 'Carnivora'. They do not belong to Insectivora, Primata, or Lagomorpha.

Step 1: Understanding the classifications

Firstly, it's necessary to identify the biological classification of each animal. Tigers, dogs, and cats all belong to the same order, Carnivora, which comprises species that have specialized in primarily eating meat.

Step 2: Assigning the animals to the correct order

Under the biological order Carnivora, the tiger, dog, and cat are correctly classified.

Step 3: Assigning the animals to the incorrect orders

The orders Insectivora, Primata, and Lagomorpha do not correctly classify these three animals. Insectivora are generally small, eating insects (this includes some moles, hedgehogs, and shrews). Primata includes primates, a group that contains humans, apes, and monkeys, among others. Lagomorpha includes animals like rabbits and hares. Therefore, these three orders are not suitable for categorizing tigers, dogs, and cats.

Key Concepts

Carnivora

The Carnivora order encompasses a wide variety of familiar animals, including the tiger, dog, and cat. This order is characterized by its members' dietary habits, primarily focusing on meat consumption, though some, like bears, have more diverse diets. This group's members have evolved specific physical traits that aid in hunting and consuming prey, such as sharp claws and teeth.

In the wild, these animals play essential roles in their ecosystems, acting as apex predators or scavengers. This role helps maintain the balance of their natural habitats by controlling the populations of other species.

• Characteristic features include well-developed canines and incisors for capturing and dissecting their prey.
• Many are active hunters with strong senses, especially sight and smell, which are crucial for tracking.
• Rippling muscles and sleek body forms assist in speed and stealth.

All these features can be observed in the tiger's majestic stance, the dog's diverse breed functionalities, and the cat's nimble mechanics.

Biological Order

In biology, the classification system categorizes organisms into hierarchical groups, making up the biological taxonomy. These groups range from broad classifications at the top, like kingdoms, to very specific ones at the bottom, like species. "Order" is one such critical tier within this organization.

Orders consist of several families of related species. For example, the order Carnivora contains various families, including Felidae (cats) and Canidae (dogs). Understanding these classifications helps scientists communicate more effectively about different species and ensures a universal system for identifying and discussing animal life.

• The order represents a midpoint in the taxonomy hierarchy, coming after "class" and before "family."
• Each order encompasses a group of families sharing common traits.
• This system allows for studying relationships and evolutionary history amongst organisms.

When looking at tigers, dogs, and cats, which all belong to Carnivora, we see how the order encapsulates evolutionary development focused on meat consumption.

Mammalia

The class Mammalia is a large group of animals that are defined by specific characteristics, such as possessing mammary glands that produce milk, a feature that distinguishes them from other vertebrate classes. Members of this class also have hair or fur and three middle ear bones, which are adaptations that have supported their survival across diverse environments.

Mammals occupy a wide range of ecological niches and exhibit significant behavioral and dietary diversity. For instance, the tiger is a solitary hunter, while dogs, known for their sociability, can be part of human households. Cats, with their independent nature, often straddle the divide between wild and domestic life.

• Mammals are warm-blooded, allowing them to regulate their internal temperature regardless of the external environment.
• They generally have a complex brain, enhancing capabilities for learning and problem-solving.
• Mammals give birth to live young (with a few exceptions), nurturing them with milk.

This class includes creatures like the tiger, dog, and cat, showing how varied and dynamic mammals can be.