Practice questions covering Phylum Arthropoda, including its key features and classification. Designed for biology exam preparation.
Green glands (also called antennal glands) in crustaceans help regulate salt and water balance.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
Mammals are warm-blooded (endothermic), not cold-blooded (ectothermic).
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
Amphibians have a three-chambered heart, consisting of two atria and one ventricle.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
Arthropods are characterized by jointed appendages, which provide mobility and functionality.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
Cyclostomes (e.g., lampreys and hagfish) lack paired fins, unlike most vertebrates.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
Amphibians have a three-chambered heart with two atria and one ventricle.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
Arthropods have an open circulatory system where the blood directly bathes organs in a hemocoel.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
All mammals have a four-chambered heart, which ensures complete separation of oxygenated and deoxygenated blood.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
Arthropods do not have a water vascular system; this feature is found in echinoderms.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
Limulus (King crab) belongs to phylum Arthropoda and is considered a living fossil.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
Malpighian tubules are excretory structures in insects that help in the removal of metabolic waste.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
Spiders and scorpions (Arachnida) possess book lungs for respiration, which are made up of thin, leaf-like structures.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Arthropoda
