15 public questions tagged with this topic.
Escape speed (ve = 2GMR) is independent of the object’s mass (option 1 correct), depends on M and R (option 2 correct), and decreases with altitude (option 4 correct). Option 3 is incorrect as it does depend on the planet.
Ref: Halliday & Resnick, Fundamentals of Physics, 11th ed., Chapter 13: Gravitation.
Blood consists of a liquid matrix (plasma) and formed elements (RBCs, WBCs, platelets).
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Blood - Plasma and Formed Elements
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
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
Spongilla is a freshwater sponge, whereas Sycon and Euspongia are marine sponges.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Porifera and Cnidaria
Reptiles are uricotelic, meaning they excrete uric acid, not urea.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Porifera and Cnidaria
Stabilizing reflects key principle in quiz on pyqs-evo theories + genetic drift, where evolutionary mechanisms shape genetic variation and adaptation. In this context, Stabilizing aligns with experimental and theoretical evidence from population genetics, behavioral ecology and molecular phylogeny. Textbooks like Campbell Biology, Futuyma Evolution and Hartl Principles illustrate supporting data. Understanding why Stabilizing fits helps integrate natural selection, environment.
Ref: Hartl & Clark, Principles of Population Genetics, Drift and Effective Size.
Reduced fitness due to limbs reflects key principle in quiz on pyqs-evo theories + genetic drift, where evolutionary mechanisms shape genetic variation and adaptation. In this context, Reduced fitness due to limbs aligns with experimental and theoretical evidence from population genetics, behavioral ecology and molecular phylogeny. Textbooks like Campbell Biology, Futuyma Evolution and Hartl Principles illustrate supporting data. Understanding why Reduced fitness due to limbs fits helps integrate natural selection, drift and species concepts essential for NEET, CSIR-NET and GATE examinations.
Ref: Hartl & Clark, Principles of Population Genetics, Drift and Effective Size.
Exadaptation reflects key principle in quiz on pyqs-evo theories + genetic drift, where evolutionary mechanisms shape genetic variation and adaptation. In this context, Exadaptation aligns with experimental and theoretical evidence from population genetics, behavioral ecology and molecular phylogeny. Textbooks like Campbell Biology, Futuyma Evolution and Hartl Principles illustrate supporting data. Understanding why Exadaptation fits helps integrate natural selection, environment.
Ref: Hartl & Clark, Principles of Population Genetics, Drift and Effective Size.
