Mcmaster Bio 1m03: Exam 2023 Questions With All The Correct Answers;(Real Actual Exam)

What are the four factors that determine an organism's niche? Which are the two primary ones? {Ans: Primary: moisture, temperature (enzymes within organism function at certain temperatures) Sunlight Wind}Oases are hotspots for productivity in desert environments. What type of population distribution would species living in deserts with oases display? {Ans: Clumped → based on habitat or social groups}How does a population in exponential growth have changes to its population size? {Ans: Changes in abiotic factors that affect birth/death rate, independent of N}Give two examples of food webs {Ans: Grazer food web → live primary producer Decomposer food web → decomposers eat dead organic matter}How will climate change affect temperature and moisture? {Ans: Temperature extremes rise, moisture decreases → increased risk of fires (more CO2), variable precipitation}Are species dishonest? {Ans: Deceit mutualism → deceit pollination Dishonest signals → interspecific or intraspecific}