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Guest Lecture Questions with complete solution 2024/2025
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Guest Lecture Questions with complete solution 2024/2025 MCB 2610 Chapter 6 Nutritional requirements of microorganisms What do microorganisms generally need to grow? - correct answer Macronutreints-all cells need acess to large quantities of carbon, nitrogen, phosphorus, sulfur and O2 to ...

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  • October 16, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
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  • guest lecture questions with complete solution 202

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Guest Lecture #1 MCB 2610
fungus-growing ants - correct answer ✔a model to understand symbiotic
communities


natural selection - correct answer ✔survival of the fittest; occurs at the level
of reproduction


symbiotic relationships feature multiple reproductive - correct answer
✔maximizing reproduction is in the best interest of each organism


commensalism - correct answer ✔neither party benefits


pathogenesis - correct answer ✔uncooperation; one party benefits


mutualism - correct answer ✔cooperation; both parties benefit


symbiosis and microbiomes - correct answer ✔all macroorganisms live with
a host of microbes


attine ants - correct answer ✔-an important model for the study of
cooperation and conflict for over 100 years (symbiosis and sociobiology)
-native primarily in the Neo-Tropics
-herbivorous, but cultivate a fungal symbiont as a major nutrient source
-cultivation includes propagation, fertilization, and defense
-monophyletic grouping

, attine diversity - correct answer ✔-gradient of evolutionary sophistication
-colony size
-nutrient source
-caste differentiation


Trachymyrmex septentrionalis - correct answer ✔-Klassen lab model system
-ranges in USA from NJ to TX
-small colonies, ~1000 workers
-eat mostly oak catkins, caterpillar frass (poop), fresh leaves


leaf-cutter ants - correct answer ✔-the mostly highly evolved fungus-growing
ants
-atta: millions of colony members
-dominant herbivore in neo-tropical forests


the life cycle of a leaf-cutter colony - correct answer ✔-cue of reproduction,
eggs laid by queen (only time you will find males), these fly on nuptial flight
and reproduce. females will dig a new nest and males will die off
-production of sexual-->mating flights-->colony founding-->colony growth


clonal propagation - correct answer ✔the queen carries the fungus to start
the new garden


fungus-growing ants - correct answer ✔-fungus growing ants codiversify with
their cultivar fungus
-clonal propagation

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