Advertisements
Advertisements
Question
Compare closed and opened circulatory system.
Solution
1. Closed circulatory system:
- The circulation in which blood is present inside the blood vessels is called closed circulatory’ system
- It is found in higher organisms, e.g. annelids, cephalochordates and vertebrates.
2. Open circulatory system:
- The circulation in which blood remains filled in tissue spaces due to the absence of blood vessels is called open circulatory system
- It is found in lower organisms. e.g. arthropods, molluscs and echinoderms.
RELATED QUESTIONS
Water vascular system is the characteristic of which group of the following:
Segmentation in the body is first observed in which of the following:
The excretory cells that are found in platyhelminthes are
Nephridia of Earthworms are performing the same functions as ______.
Metameric segmentation is the main feature of ______.
The respiratory pigment in cockroach is ______.
Exoskeleton of which phylum consists of chitinous cuticle?
In which of the following phyla, the adult shows radial symmetry but the larva shows bilateral symmetry?
Which of the following is correctly matched?
Why flatworms are called acoelomates?
In which phyla is the larva trochopore found?
Which of the chordate characteristics do tunicates retain as adults?
Could the number of eggs or young ones produced by an oviparous and viviparous female be equal? Why?
Which of the following statement is TRUE?
Choose the CORRECT combination with respect to examples of the taxonomic groups.
Subphylum Vertebrata is divided into two divisions based on the
