Biology Study Aide

  CLASS ELEVEN BIOLOGY CHAPTER 2 BIOLOGICAL CLASSIFICATION QUESTIONNAIRE FOR TESTS AND REVISION. PART 7 1.      What are lichens, and what is their ecological significance? a.       Lichens are symbiotic associations between algae (phycobiont) and fungi (mycobiont). They are important indicators of air quality and pollution levels. 2.      How do lichens demonstrate mutualism? a.       Lichens demonstrate mutualism by the algae providing food through photosynthesis, while the fungi provide shelter and absorb mineral nutrients and water for both organisms. 3.      Why are lichens used as pollution indicators? a.       Lichens are sensitive to air pollution and do not grow in polluted areas, making them valuable indicators of environmental health and air quality. 4.      What roles do algae and fungi play in the lichen ...

   CLASS ELEVEN BIOLOGY CHAPTER 2 BIOLOGICAL CLASSIFICATION QUESTIONNAIRE FOR TESTS AND REVISION. PART 6 It can be used as reference material for competitive exams also. 1.      Which kingdom is characterized by heterotrophic eukaryotic organisms with multicellular cells lacking cell walls? a. This kingdom is Animalia. 2.      How do animals obtain their food, and what is their mode of nutrition? a. Animals obtain their food through ingestion, and their mode of nutrition is holozoic, meaning they ingest solid food and digest it internally. 3.      How do animals store their food reserves? a. Animals store food reserves as glycogen or fat, which serve as energy reserves for metabolic activities. 4.      Describe the growth pattern of animals. a. Animals follow a definite growth pattern from juvenile stages to adults, where they attain a specific shape and size characteristic of their species. 5. ...

  CLASS ELEVEN BIOLOGY CHAPTER 2 BIOLOGICAL CLASSIFICATION QUESTIONNAIRE FOR TESTS AND REVISION. PART 5 It can be used as reference material for competitive exams also. 1.      Why are Deuteromycetes commonly known as imperfect fungi? a. Deuteromycetes are called imperfect fungi because only their asexual or vegetative phases were known for a long time. Their sexual stages were not observed or understood until later discoveries. 2.      How were Deuteromycetes classified before the discovery of their sexual forms? a. Before the discovery of their sexual forms, Deuteromycetes were classified based on their asexual or vegetative stages alone, often under one name. Their true classification into Ascomycetes or Basidiomycetes occurred once their sexual stages were identified. 3.      What is the significance of conidia in the reproduction of Deuteromycetes? a. Deuteromycetes reproduce exclusively by asexual spores called conid...