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Consider the following statements A. ...

Consider the following statements
A. Flame cells are excretory structures in flatworms
B. Green glands are excretory organs in annelids
C. Columns of Bertini are the conical projections of renal pelvis into medulla between the renal pyramids

A

B and C incorrect

B

A and B correct

C

A and C correct

D

A, B and C correct

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we will evaluate each of the three statements provided and determine their validity. ### Step 1: Evaluate Statement A **Statement A:** "Flame cells are excretory structures in flatworms." - **Analysis:** Flame cells, also known as protonephridia, are indeed the excretory structures found in flatworms. They play a crucial role in the excretion of waste products and osmoregulation in these organisms. - **Conclusion:** This statement is **True**. ### Step 2: Evaluate Statement B **Statement B:** "Green glands are excretory organs in annelids." - **Analysis:** Green glands, also known as antennal glands, are not found in annelids. They are excretory organs present in crustaceans (like prawns). In annelids, such as earthworms, the excretory organs are called nephridia. - **Conclusion:** This statement is **False**. ### Step 3: Evaluate Statement C **Statement C:** "Columns of Bertini are the conical projections of renal pelvis into medulla between the renal pyramids." - **Analysis:** The Columns of Bertini (or renal columns) are indeed extensions of the renal cortex that extend between the renal pyramids in the medulla of the kidney. They are not projections of the renal pelvis but rather are structures that separate the renal pyramids. - **Conclusion:** This statement is **True**. ### Final Evaluation - Statement A is **True**. - Statement B is **False**. - Statement C is **True**. ### Summary of Correct Statements The correct statements are A and C. ### Final Answer The correct answer is that statements A and C are true. ---
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