MCQs Zoology [1] Posted on 2023-04-29Author admin 0 1. Transformation of a species over time, without branching of the evolutionary line of descent, is called_________________ Monogenesis Polygenesis Cladogenesis Anagenesis 2. ___________ are not herbivores Cows Goat Dear Bears 3. __________%of animal species are invertebrates Around 45% Around 65% Around 5% around 95% 4. At____________oC temperature water has maximum density 4 100 0 10 5. Cephalopods are__________ Invertebrates None Vertebrates Mollusks 6. In pond ecosystem, benthos are___________ Primary consumers Zooplankton Carnivore fish Phytoplankton 7. Gregor Mendel was born in ________ 1836 1840 1822 1906 8. _________ insects feed on only one type of food Biphagous Polyphagous Aphagous Monophagous 9. A mass extinction is_______ Simultaneous extinction of many species Extinction of small-sized species Extinction of species with massive size Simultaneous extinction of few species 10. ________ proposed germplasm theory August Weismann Von Baer None Francis Galton 11. Concentration of oxygen in the atmosphere is approximately ____________________________ 21% 0.04 0.9 78% 12. Concentration of CO2 in the atmosphere is approximately ____________________________ 0.04 78% 0.9 21% 13. ____________ is the level of taxonomic study concerned with the biological aspects of taxa, including intraspecific populations, speciation, evolutionary rates and trends Gamma Taxonomy Alpha Taxonomy Beta Taxonomy Theta Taxonomy 14. _______________ species have an extremely high impact on ecosystem, and it define the entire ecosystem population Opportunistic species Dominant species Eco-tone species Keystone species 15. Watson and Crick’s model of DNA was described in __________ 1942 1882 1906 1952 16. Dengue is transmitted to humans through______________- Female Aedes mosquito Female Anopheles mosquito Male Anopheles mosquito Male Aedes mosquito 17. Function of DNA ligase during DNA replication is ___________________ Proofreading of DNA strands for errors Addition of new nucleotides to the growing DNA strand Glue fragments of DNA together Unwinds the double helix 18. ________ describes attempt of two or more organisms to utilize the same resource Taxis Competition Food Security Social Behavior 19. Malaria is transmitted to humans through______________- Male Anopheles mosquito Female Aedes mosquito Male Aedes mosquito Female Anopheles mosquito 20. Insects belong to phylum___________ Mollusca Arthropoda Nematoda Chordata Loading … Question 1 of 20
