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Open blood circulation is found in...

Open blood circulation is found in

A

Earthworm

B

Cockroach/Prawn

C

Humans

D

Cows.

Text Solution

AI Generated Solution

The correct Answer is:
To determine where open blood circulation is found, let's analyze the options provided step by step: 1. **Understanding Open Blood Circulation**: Open blood circulation refers to a system where the blood is not confined to blood vessels. Instead, it flows freely through spaces in the body called sinuses. This is in contrast to closed blood circulation, where blood is contained within vessels. 2. **Analyzing the Options**: - **Option 1: Earthworm**: Earthworms belong to the phylum Annelida and have a closed circulatory system. Therefore, this option is not correct. - **Option 2: Cockroach or Prawn**: Both cockroaches and prawns belong to the phylum Arthropoda, which is known for having an open circulatory system. Blood in these organisms flows through sinuses rather than being confined to vessels. This option is likely correct. - **Option 3: Humans**: Humans belong to the class Mammalia within the phylum Chordata and possess a closed circulatory system. Thus, this option is incorrect. - **Option 4: Cows**: Cows, like humans, also belong to the class Mammalia and have a closed circulatory system. Therefore, this option is also incorrect. 3. **Conclusion**: Based on the analysis, the only option that correctly represents an organism with an open blood circulation system is **Option 2: Cockroach or Prawn**. Final Answer: **Open blood circulation is found in cockroach or prawn.** ---
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