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BIOL 286 EXAM 1 | 420 QUESTIONS | WITH COMPLETE SOLUTIONS!!
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BIOL 286 EXAM 1 | 420 QUESTIONS | WITH COMPLETE SOLUTIONS!!
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BIOL 286 EXAM 1 | 420QUESTIONS | WITH
COMPLETE
SOLUTIONS!!
BIOL 286
Evatee 10/17/24 BIOL 286
,BIOL 286 EXAM 1 | 420 QUESTIONS | WITH
COMPLETE SOLUTIONS!!
What is the scientific method? Answer - Describes how scientific ideas are
developed and tested
What is a hypothesis? Answer - Proposed explanation of phenomenon
What is a prediction? Answer - Logical consequence of a hypothesis
Describe the symbiotic relationship between leaf-cutter ants and the fungi they
cultivate in their gardens Answer - The leaf cutter ants bring leaf pulp to their
"garden" which feeds the fungus that produces a sugar that the ants then
consume
What is a treatment? Answer - Different categories of conditions that scientists
administer to study subjects
What is a control treatment? Answer - Reproduces all aspects of the
experiment except for the variable of interest
What is a replicate? Answer - One of multiple experimental units that are
exposed to the same treatment
Describe how to plot dependent and independent variables on x and y axes.
Answer - X: treatment (independent variable)
Y: Response to treatment (dependent variable)
,What is one way to distinguish dependent and independent variables from one
another? Answer - When the independent is changed, the dependent
responds
What is ecology? Answer - Study of interactions between organisms and their
environment
What are populations? Answer - Sets of interbreeding individuals
What are communities? Answer - Sets of co-existing populations
What are ecosystems? Answer - Communities and the physical systems they
interact with
What is the biosphere? Answer - All the environments and organisms on earth
What is the smallest unit of ecology? What are organs, cells, etc. not units of
ecology? Answer - Organism; cells and organs don't live a separate life in
environment
Describe how organisms modify their environments. Answer - Each organism
has a membrane that separates it from its environment so it can exchange with
it, therefore modifying
How do plants produce energy? Answer - Use sunlight, water, and carbon
dioxide to perform photosynthesis to produce sugar
, How do animals differ from plants? Answer - Animals consume their energy
from other organisms
How do fungi make nutrients available to other organisms? Answer -
Decompose dead plant material
How do protists and bacterial differ from animals, plants, and fungi? Answer -
Protists and bacteria are single celled
Describe how populations differ from organisms. Answer - Population: many
organisms of the same kind
Describe how communities differ from organisms and populations. Answer -
Community: different species living in the same place
What is symbiosis? Answer - Close association between species
What is mutualism? Answer - Both species benefit
What is parasitism? Answer - One benefits and one is harmed
What separates one ecosystem from another? Answer - Processes separate
ecosystems
Why are ecology and evolution not distinct from one another? Answer -
Ecological factors affect evolution and evolution affects ecology
Who developed the concept of natural selection? Answer - Alfred Russell
Wallace and Charles Darwin
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