Home
Class 11
BIOLOGY
Assertion : Open circulatory system is f...

Assertion : Open circulatory system is found in most arthropods.
Reason : Arthropods contain haemolymph which directly bathers internal tissues and organ.

A

IF both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A

Open circulatory system is found in arthorpods becaue arthropods contains haemolymph which directly bathes internal organs and tissues.
Promotional Banner

Topper's Solved these Questions

  • ANIMAL KINGDOM

    A2Z|Exercise Section C : Previous Years' Examination Questions (NEET/AIPMT Questions)|80 Videos
  • ANIMAL KINGDOM

    A2Z|Exercise Section C : Previous Years' Examination Questions (AIIMS Questions)|19 Videos
  • ANIMAL KINGDOM

    A2Z|Exercise Section A : Topicwise Questions Topic 4 : Phylum-arthropodia , Mollusca , Echinodermata|157 Videos
  • ANATOMY OF FLOWERING PLANTS

    A2Z|Exercise Section D: Chapter End Test|50 Videos
  • BIOLOGICAL CLASSIFICATION

    A2Z|Exercise Mock Test Assertion - Reasoning Question|5 Videos

Similar Questions

Explore conceptually related problems

Assertion : In mollusca, circulatory system is of closed type Reason : The blood of mollusca contains haemoglobin

Open circulatory system is present in Arthropods (Insects) Annelids Chordates Molluscs

Open circulatory system is present in : (A) Arthropods (B) Annelids (C) Chordates (D) Molluscs

Assertion : Closed circulatory system is less efficient than open circulatory system Reason : The blood flow is slow is closed circulatory system than in open circulatory system.

Assertion : The open circulatory system is more efficient than the closed circulatory system. Reasoning : The blood flows far more rapidly in open circulatory system than in the closed one.

Read the following statements : i. Open type circulatory systems are found in Arthropods. ii. Pseudocoelomates are bilaterally symmetrical. iii. Most of the sponges are radially symmetrical. iv. Platyhelminthes have a tissue level of organization. How many of the above statements are incorrect?

Assertion: During the course of evolution, alimentray canal is first completed in aschelminthes, circulatory system in annelids, and respiratory system in arthropods. Reason: In echinoderms, degestive system is complete with mouth on upper side and anus on the lower side.

Assertion : In open circulatory system blood is pumped by heart passes throgh large vessels into open spaces or body cavities called sinuses. Reason : This distribution of blood to different organs, is well regulated.