MCQs

Explanation
Insects are a group of animals that have three pairs of jointed legs, and many of them have one or two pairs of wings . Their body is divided into three main segments: head, thorax, and abdomen. Insects include a wide range of species, some of which suck blood (like mosquitoes) or nectar from flowers (like bees and butterflies). Insects also lay eggs.

Explanation
Mammals are a group of animals that have babies that are born alive (viviparous) , are warm-blooded (endothermic), have mothers that feed their babies with milk (lactation) , and have fur, hair, or skin and a spine (vertebrates). Examples : humans, dogs, cats, bears, whales, dolphins, lions, monkeys, elephants and sharks etc.

Explanation
Permanent magnets are materials that retain their magnetism for a long time. They are typically difficult to magnetize , but once magnetized, they retain their magnetic properties.

Explanation
Birds are a group of animals that lay eggs, are warm-blooded , have either a beak or bill , have feathers on their body, and have a tail, two legs , and two wings. Examples: sparrows, eagles, robins, and ostriches.

Explanation
Reptiles are a group of animals that have dry, scaly skin, are cold-blooded, lay their eggs on land , and live in both water and on land. Examples : snakes, lizards, spider, tortoise, turtles, and crocodiles.

Explanation
Amphibians are a group of cold-blooded animals that live in both aquatic (water) and terrestrial environments (land) . They have moist, smooth skin that helps them to breathe and regulate their body temperature . Examples : frogs, toads, salamanders, and newts.

Explanation
Fish are aquatic animals that live in water, have fins instead of legs, lay eggs in water, have a body covered in scales, and breathe using gills . They are a group of cold-blooded vertebrates that are well adapted to life in water .

Explanation
Warm-blooded vertebrates, also known as endothermic vertebrates. Warm-blooded are animals that maintain a constant body temperature , regardless of the temperature of their surroundings. They are able to generate heat internally and regulate their body temperature, allowing them to maintain a relatively constant body temperature. Examples : birds and mammals.

Explanation
Cold-blooded vertebrates are animals that take on the temperature of their surroundings. They are also known as ectothermic vertebrates . Their body temperature is regulated by the environment around them, and they often bask in the sun or seek shade to control their body temperature. Examples : fish, amphibians, and reptiles.

Explanation
Vertebrates are divided into two main groups based on temperature regulation: Cold-blooded (ectothermic) vertebrates, which include: Fish, Amphibians and Reptiles Warm-blooded (endothermic) vertebrates, which include: Birds and Mammals (including humans)

Explanation
Insects are a group of animals that have three pairs of jointed legs, and many of them have one or two pairs of wings . Their body is divided into three main segments: head, thorax, and abdomen. Insects include a wide range of species, some of which suck blood (like mosquitoes) or nectar from flowers (like bees and butterflies). Insects also lay eggs.

Explanation
Mammals are a group of animals that have babies that are born alive (viviparous) , are warm-blooded (endothermic), have mothers that feed their babies with milk (lactation) , and have fur, hair, or skin and a spine (vertebrates). Examples : humans, dogs, cats, bears, whales, dolphins, lions, monkeys, elephants and sharks etc.

Explanation
Permanent magnets are materials that retain their magnetism for a long time. They are typically difficult to magnetize , but once magnetized, they retain their magnetic properties.

Explanation
Birds are a group of animals that lay eggs, are warm-blooded , have either a beak or bill , have feathers on their body, and have a tail, two legs , and two wings. Examples: sparrows, eagles, robins, and ostriches.

Explanation
Reptiles are a group of animals that have dry, scaly skin, are cold-blooded, lay their eggs on land , and live in both water and on land. Examples : snakes, lizards, spider, tortoise, turtles, and crocodiles.

Explanation
Amphibians are a group of cold-blooded animals that live in both aquatic (water) and terrestrial environments (land) . They have moist, smooth skin that helps them to breathe and regulate their body temperature . Examples : frogs, toads, salamanders, and newts.

Explanation
Fish are aquatic animals that live in water, have fins instead of legs, lay eggs in water, have a body covered in scales, and breathe using gills . They are a group of cold-blooded vertebrates that are well adapted to life in water .

Explanation
Warm-blooded vertebrates, also known as endothermic vertebrates. Warm-blooded are animals that maintain a constant body temperature , regardless of the temperature of their surroundings. They are able to generate heat internally and regulate their body temperature, allowing them to maintain a relatively constant body temperature. Examples : birds and mammals.

Explanation
Cold-blooded vertebrates are animals that take on the temperature of their surroundings. They are also known as ectothermic vertebrates . Their body temperature is regulated by the environment around them, and they often bask in the sun or seek shade to control their body temperature. Examples : fish, amphibians, and reptiles.

Explanation
Vertebrates are divided into two main groups based on temperature regulation: Cold-blooded (ectothermic) vertebrates, which include: Fish, Amphibians and Reptiles Warm-blooded (endothermic) vertebrates, which include: Birds and Mammals (including humans)

Explanation
Insects are a group of animals that have three pairs of jointed legs, and many of them have one or two pairs of wings . Their body is divided into three main segments: head, thorax, and abdomen. Insects include a wide range of species, some of which suck blood (like mosquitoes) or nectar from flowers (like bees and butterflies). Insects also lay eggs.

Explanation
Mammals are a group of animals that have babies that are born alive (viviparous) , are warm-blooded (endothermic), have mothers that feed their babies with milk (lactation) , and have fur, hair, or skin and a spine (vertebrates). Examples : humans, dogs, cats, bears, whales, dolphins, lions, monkeys, elephants and sharks etc.

Explanation
Fungi are multicellular organisms, consisting of many cells that work together to form complex structures like mushrooms and molds. They have modified cell wall and nucleus. They have not chlorophyll. Plants are multicellular , composed of many cells that work together to form roots, stems, leaves, and other structures. They have modified cell wall and nucleus. They have chlorophyll . Animals, including humans, are multicellular organisms made up of many cells that work together to form tissues, organs, and systems. They have modified nucleus but don't have cell wall. They have not chlorophyll.

Explanation
Jupiter takes approximately 4332.62 Earth days to complete one revolution around the Sun. Which is the longest revolution period of all the planets in our solar system.

Explanation
The Earth takes approximately 23 hours, 56 minutes, and 4 seconds to complete one rotation on its axis, which is called a sidereal day. This is the time it takes for the Earth to rotate once relative to the fixed stars. The extra 4 minutes is due to the Earth's slightly ellipsoidal shape and the effects of the Moon's gravitational pull.

Explanation
The sun rises in the  East and sets in the West. which means that the  Earth is rotating from West to East.  Earth revolves in orbit around the Sun in  365 days, 6 hours, 9 minutes. with reference to the stars, at a speed ranging from  29.29 to 30.29 km/s. The  6 hours, 9 minutes  add up to about an extra day every fourth year, which is designated a leap year, with the extra day added as  February 29th.

Explanation
The Earth rotates constantly from West to East. Which is why the Sun appears to rise in the East and set in the West. This rotation is also the reason why we experience day and night in a 24-hour cycle.

Explanation
When the half of the Earth is facing away from the Sun, it experiences Night , as it is not receiving direct sunlight.