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Which of the following characteristics is incorrect with respect to cockroaches?
- a)A ring of gastric caeca is present at the junction of midgut and hindgut.
- b)Hypopharynx lies within the cavity enclosed by the mouth parts.
- c)In females, 7th - 9th sterna together form a genital pouch.
- d)10th abdominal segment in both sexes, bears a pair of anal cerci.
Correct answer is option 'A'. Can you explain this answer?
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Which of the following characteristics is incorrect with respect to co...
Cockroach Characteristics
Incorrect Characteristic: A ring of gastric caeca is present at the junction of midgut and hindgut.
The correct answer is option 'A'. The statement that a ring of gastric caeca is present at the junction of midgut and hindgut in cockroaches is incorrect.
Explanation:
Cockroaches are insects belonging to the order Blattodea. They are known for their adaptability and survival skills. Let's understand the other characteristics mentioned in the options and why they are correct:
a) A ring of gastric caeca is present at the junction of midgut and hindgut.
This statement is incorrect. Gastric caeca are finger-like pouches that are present in the midgut of insects. They are responsible for the secretion of digestive enzymes and absorption of nutrients. However, in cockroaches, gastric caeca are not present at the junction of midgut and hindgut. Instead, they are found in the anterior part of the midgut.
b) Hypopharynx lies within the cavity enclosed by the mouth parts.
This statement is correct. The hypopharynx is a small, finger-like structure located within the cavity enclosed by the mouthparts of a cockroach. It plays a role in the manipulation and movement of food during feeding.
c) In females, 7th - 9th sterna together form a genital pouch.
This statement is correct. In female cockroaches, the 7th - 9th abdominal segments together form a genital pouch. This pouch contains the reproductive organs and is involved in the process of egg-laying.
d) 10th abdominal segment in both sexes bears a pair of anal cerci.
This statement is correct. The anal cerci are paired appendages found on the 10th abdominal segment of both male and female cockroaches. They are sensory structures that help in detecting vibrations and air movements, aiding in the detection of predators or potential mates.
In conclusion, the incorrect characteristic mentioned in the options is that a ring of gastric caeca is present at the junction of midgut and hindgut in cockroaches.
Incorrect Characteristic: A ring of gastric caeca is present at the junction of midgut and hindgut.
The correct answer is option 'A'. The statement that a ring of gastric caeca is present at the junction of midgut and hindgut in cockroaches is incorrect.
Explanation:
Cockroaches are insects belonging to the order Blattodea. They are known for their adaptability and survival skills. Let's understand the other characteristics mentioned in the options and why they are correct:
a) A ring of gastric caeca is present at the junction of midgut and hindgut.
This statement is incorrect. Gastric caeca are finger-like pouches that are present in the midgut of insects. They are responsible for the secretion of digestive enzymes and absorption of nutrients. However, in cockroaches, gastric caeca are not present at the junction of midgut and hindgut. Instead, they are found in the anterior part of the midgut.
b) Hypopharynx lies within the cavity enclosed by the mouth parts.
This statement is correct. The hypopharynx is a small, finger-like structure located within the cavity enclosed by the mouthparts of a cockroach. It plays a role in the manipulation and movement of food during feeding.
c) In females, 7th - 9th sterna together form a genital pouch.
This statement is correct. In female cockroaches, the 7th - 9th abdominal segments together form a genital pouch. This pouch contains the reproductive organs and is involved in the process of egg-laying.
d) 10th abdominal segment in both sexes bears a pair of anal cerci.
This statement is correct. The anal cerci are paired appendages found on the 10th abdominal segment of both male and female cockroaches. They are sensory structures that help in detecting vibrations and air movements, aiding in the detection of predators or potential mates.
In conclusion, the incorrect characteristic mentioned in the options is that a ring of gastric caeca is present at the junction of midgut and hindgut in cockroaches.
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Community Answer
Which of the following characteristics is incorrect with respect to co...
At the junction between foregut and midgut, 6-8 finger-like tubular structures are present called hepatic caeca or gastric caeca. These hepatic caeca help in the secretion of digestive enzymes and absorption.
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Which of the following characteristics is incorrect with respect to cockroaches?a)A ring of gastric caeca is present at the junction of midgut and hindgut.b)Hypopharynx lies within the cavity enclosed by the mouth parts.c)In females, 7th - 9th sterna together form a genital pouch.d)10th abdominal segment in both sexes, bears a pair of anal cerci.Correct answer is option 'A'. Can you explain this answer?
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Which of the following characteristics is incorrect with respect to cockroaches?a)A ring of gastric caeca is present at the junction of midgut and hindgut.b)Hypopharynx lies within the cavity enclosed by the mouth parts.c)In females, 7th - 9th sterna together form a genital pouch.d)10th abdominal segment in both sexes, bears a pair of anal cerci.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following characteristics is incorrect with respect to cockroaches?a)A ring of gastric caeca is present at the junction of midgut and hindgut.b)Hypopharynx lies within the cavity enclosed by the mouth parts.c)In females, 7th - 9th sterna together form a genital pouch.d)10th abdominal segment in both sexes, bears a pair of anal cerci.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following characteristics is incorrect with respect to cockroaches?a)A ring of gastric caeca is present at the junction of midgut and hindgut.b)Hypopharynx lies within the cavity enclosed by the mouth parts.c)In females, 7th - 9th sterna together form a genital pouch.d)10th abdominal segment in both sexes, bears a pair of anal cerci.Correct answer is option 'A'. Can you explain this answer?.
Which of the following characteristics is incorrect with respect to cockroaches?a)A ring of gastric caeca is present at the junction of midgut and hindgut.b)Hypopharynx lies within the cavity enclosed by the mouth parts.c)In females, 7th - 9th sterna together form a genital pouch.d)10th abdominal segment in both sexes, bears a pair of anal cerci.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following characteristics is incorrect with respect to cockroaches?a)A ring of gastric caeca is present at the junction of midgut and hindgut.b)Hypopharynx lies within the cavity enclosed by the mouth parts.c)In females, 7th - 9th sterna together form a genital pouch.d)10th abdominal segment in both sexes, bears a pair of anal cerci.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following characteristics is incorrect with respect to cockroaches?a)A ring of gastric caeca is present at the junction of midgut and hindgut.b)Hypopharynx lies within the cavity enclosed by the mouth parts.c)In females, 7th - 9th sterna together form a genital pouch.d)10th abdominal segment in both sexes, bears a pair of anal cerci.Correct answer is option 'A'. Can you explain this answer?.
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