Biology · Science General

Diversity in Living Organisms

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The diversity in living organisms deals with the classification of life forms into various kingdoms and phyla. This topic covers specific traits of bacteria, animal body cavities, and structural adaptations for survival. These fundamentals are crucial for biology sections in medical entrance and state board exams.

Animal phyla characteristicsBacteria and flagellaBiological adaptationsKingdom Animalia classificationBody cavity typesExtinct organism subphylaJawless animals identification

Diversity in Living Organisms Questions

Multiple choice general knowledge math & puzzles

Some animals have their bony structure on the outside...

  1. exoskeleton

  2. euthanasia

  3. expectorate

  4. Genesis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An exoskeleton is a rigid external covering that provides support and protection to animals like insects, crustaceans, and arthropods. Unlike humans who have internal skeletons, these creatures have their bony structure on the outside of their body. 'Euthanasia' means mercy killing, 'expectorate' means to spit, and 'Genesis' refers to origin or creation.

Multiple choice general knowledge

Which of the following is true about Tigers?

  1. They are the only wild cats who can swim

  2. They are the only wild cats with stripes and no spots

  3. They are the smallest of the Big cats

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tigers are the only big cats (Panthera genus) with distinctive stripes and no spots. Lions have solid coats, leopards and jaguars have rosette spots, and snow leopards have rosettes. While some smaller wild cats also have stripes, the question specifically refers to the well-known big cats where tigers are uniquely striped. Many cats can swim (refuting A), and tigers are actually among the largest (refuting C).

Multiple choice general knowledge

Why do Tigers leave scratch marks on tree trunks ?

  1. To mark their territory

  2. To strengthen their muscles

  3. To attract prey

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

To answer this question, the user needs to know about the behavior of tigers and their reasons for scratching tree trunks.

Option A: To mark their territory. This option is correct. Tigers are territorial animals, and they use scratch marks to identify their territory and warn other tigers to stay away. The scratch marks often contain the tiger's scent, which helps to deter other tigers from entering the area.

Option B: To strengthen their muscles. This option is incorrect. While scratching against tree trunks may help to exercise a tiger's muscles, it is not the primary reason for the behavior.

Option C: To attract prey. This option is incorrect. Tigers do not scratch tree trunks to attract prey. In fact, the scratch marks may actually deter prey animals from entering the territory, as they are a clear sign of a predator's presence.

Option D: All of the above. This option is incorrect. While scratch marks may serve multiple purposes for a tiger, strengthening muscles and attracting prey are not among them. The correct answer is option A.

Therefore, the answer is: A. To mark their territory.

Multiple choice general knowledge math & puzzles

The kingsnake, native to southern USA and northern Mexico, preys on birds, frogs, lizards and other snakes. Is the kingsnake venomous?

  1. Yes

  2. No

  3. No idea

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Kingsnakes are non-venomous constrictors found in the southern USA and northern Mexico. Despite their name, they kill prey through constriction, not venom. They are famous for eating other snakes, including venomous species, and are immune to many snake venoms.

Multiple choice general knowledge sports

When a horned toad is angry, it __________________.

  1. escapes.

  2. squirts blood from eyes.

  3. starts fight.

  4. changes it's body color.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Horned toads (horned lizards) have a unique defense mechanism where they squirt blood from their eyes when threatened. Option B is correct. Options A (escapes), C (starts fight), and D (changes body color) are not their primary defensive behavior.

Multiple choice general knowledge math & puzzles

Reptiles, like lizards, are cold-blooded. This means:

  1. They don't have feelings.

  2. They don't hibernate.

  3. Their blood stays cold even when it's hot outside.

  4. They need heat from the sun to keep them warm.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cold-blooded (ectothermic) means that an animal cannot regulate its internal body temperature internally. Instead, they rely on external heat sources, like the sun, to warm up and become active. It does not mean their blood is always cold.

Multiple choice general knowledge

What determines the gender of a baby alligator?

  1. The season of the year

  2. The temperature of the nest in which the egg is hatched

  3. The relative ages of the male and female parents

  4. The diet of the mother
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Alligator gender is determined by temperature-dependent sex determination (TSD). Eggs incubated at approximately 32-33°C produce males, while temperatures below 32°C produce females and above 33°C produce females. This environmental mechanism contrasts with genetic sex determination in mammals.

Multiple choice general knowledge

Why do llamas spit?

  1. Because they have eaten something that tastes bad

  2. To chase away predators

  3. Spitting is how llamas sweat

  4. To establish rank in the herd
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Llamas spit primarily as a way to establish dominance and maintain social hierarchy within the herd. It's a form of communication used to settle disputes over resources like food, territory, or mating opportunities. They don't spit because of bad taste, to chase predators, or as a cooling mechanism.

Multiple choice general knowledge

Which of the following are NOT true: The American crocodile

  1. can close off its nasal passages in water in order to hunt and not drown

  2. sheds and replaces its teeth.

  3. relaxes with its mouth open to allow small birds to remove pieces of food from its teeth

  4. can live an average of 100 years.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

American crocodiles do have several remarkable adaptations: they can close their nasal passages underwater, they continually replace their teeth throughout life, and some birds do clean their teeth. However, their average lifespan is 70-100 years in the wild, not exactly 'an average of 100 years,' making this the least accurate statement.

Multiple choice general knowledge

The king cobra has a forked tongue. Do you know the purpose of this forked tongue?

  1. To shoot out venom

  2. To smell its prey

  3. To trap two preys with one tongue

  4. Nothing, it is vestigial in nature
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Snakes use their forked tongues for chemoreception - to smell and detect chemical cues in their environment. The fork allows them to detect directionality of scents by sensing differences in chemical concentration between the two tines.

Multiple choice general knowledge

Reptiles, like lizards, are cold-blooded. This means:

  1. They don't have feelings.

  2. They don't hibernate.

  3. Their blood stays cold even when it's hot outside.

  4. They need heat from the sun to keep them warm.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cold-blooded animals like reptiles depend on external heat sources to regulate their body temperature. They bask in the sun to warm up and seek shade when too hot, as they cannot generate sufficient internal body heat like warm-blooded animals.