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With reference to Octopus, consider the following statements:
- It is a marine mollusk belongs to the member of the class Cephalopoda.
- The skin of octopus contains cells called chromatophores that allow them to change color and pattern.
Which of the statements given above is/are correct?
- a)1 Only
- b)2 Only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
With reference to Octopus, consider the following statements: It is a ...
Recently, marine scientists have discovered a new Octopus nursery off the coast of Costa Rica.
- It is a marine mollusk and a member of the class Cephalopoda, more commonly called cephalopods.
- Cephalopoda means “head foot” in Greek, and in this class of organisms the head and feet are merged.
- A ring of eight equally-long arms surround the head. They use their arms to "walk" on seafloor.
- The undersides of the arms are covered with suction cups that are very sensitive to touch and taste.
- The sack-like body is perched atop the head, which has two complex and sensitive eyes, while the mouth is on the underside.
- They have three functioning hearts.
- Two of the hearts work exclusively to move blood to the gills, while the third pumps blood through the rest of the body.
- Their blood is copper-based which is more efficient at transporting oxygen at low temperatures and makes their blood blue in color.
- They are solitary creatures excellent at camouflaging and concealing themselves.
- They are about 90 percent muscle, and because they lack bones, they can fit through very small spaces.
- Their skin contains cells called chromatophores that allow the octopus to change color and pattern.
- They are found in every ocean of the world.
Hence both statements are correct.
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With reference to Octopus, consider the following statements: It is a ...
Statement 1: It is a marine mollusk belongs to the member of the class Cephalopoda.
Statement 2: The skin of octopus contains cells called chromatophores that allow them to change color and pattern.
The correct answer is option C, which means both statements 1 and 2 are correct.
Explanation:
Octopus is a fascinating marine creature that belongs to the class Cephalopoda. Let's look at each statement in detail to understand why they are correct.
Statement 1: It is a marine mollusk belongs to the member of the class Cephalopoda.
- Octopus is indeed a marine animal, which means it lives in the oceans.
- It belongs to the class Cephalopoda, which also includes other mollusks like squids and cuttlefish.
- The class Cephalopoda is characterized by animals with a distinct head (cephalopod), tentacles or arms, and well-developed eyes.
Statement 2: The skin of octopus contains cells called chromatophores that allow them to change color and pattern.
- Octopuses have a remarkable ability to change their skin color and pattern, which helps them camouflage and communicate with other octopuses.
- This color-changing ability is possible due to specialized cells called chromatophores present in their skin.
- Chromatophores contain pigments that can be expanded or contracted, allowing the octopus to display different colors and patterns.
- By controlling the size and distribution of pigmented cells, octopuses can blend in with their surroundings or display vibrant displays to attract mates or deter predators.
In conclusion, both statements 1 and 2 are correct. Octopus is a marine mollusk that belongs to the class Cephalopoda, and its skin contains chromatophores that enable it to change color and pattern.
Statement 2: The skin of octopus contains cells called chromatophores that allow them to change color and pattern.
The correct answer is option C, which means both statements 1 and 2 are correct.
Explanation:
Octopus is a fascinating marine creature that belongs to the class Cephalopoda. Let's look at each statement in detail to understand why they are correct.
Statement 1: It is a marine mollusk belongs to the member of the class Cephalopoda.
- Octopus is indeed a marine animal, which means it lives in the oceans.
- It belongs to the class Cephalopoda, which also includes other mollusks like squids and cuttlefish.
- The class Cephalopoda is characterized by animals with a distinct head (cephalopod), tentacles or arms, and well-developed eyes.
Statement 2: The skin of octopus contains cells called chromatophores that allow them to change color and pattern.
- Octopuses have a remarkable ability to change their skin color and pattern, which helps them camouflage and communicate with other octopuses.
- This color-changing ability is possible due to specialized cells called chromatophores present in their skin.
- Chromatophores contain pigments that can be expanded or contracted, allowing the octopus to display different colors and patterns.
- By controlling the size and distribution of pigmented cells, octopuses can blend in with their surroundings or display vibrant displays to attract mates or deter predators.
In conclusion, both statements 1 and 2 are correct. Octopus is a marine mollusk that belongs to the class Cephalopoda, and its skin contains chromatophores that enable it to change color and pattern.
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With reference to Octopus, consider the following statements: It is a marine mollusk belongs to the member of the class Cephalopoda. The skin of octopus contains cells called chromatophores that allow them to change color and pattern.Which of the statements given above is/are correct?a)1 Onlyb)2 Onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?
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With reference to Octopus, consider the following statements: It is a marine mollusk belongs to the member of the class Cephalopoda. The skin of octopus contains cells called chromatophores that allow them to change color and pattern.Which of the statements given above is/are correct?a)1 Onlyb)2 Onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about With reference to Octopus, consider the following statements: It is a marine mollusk belongs to the member of the class Cephalopoda. The skin of octopus contains cells called chromatophores that allow them to change color and pattern.Which of the statements given above is/are correct?a)1 Onlyb)2 Onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to Octopus, consider the following statements: It is a marine mollusk belongs to the member of the class Cephalopoda. The skin of octopus contains cells called chromatophores that allow them to change color and pattern.Which of the statements given above is/are correct?a)1 Onlyb)2 Onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?.
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