Biol 1108 MSH Exam Questions with
Correct Answers 2026
Ecosystem - CORRECT ANSWER -
A community of living organisms and their interactions with each other and their physical e
nvironment; no boundaries
Environment (Abiotic) - CORRECT ANSWER -Climate, Geology, Disturbance, Site history
Organisms (Biotic) - CORRECT ANSWER -
Biodiversity, Species interactions, distribution and quantity of individual species or groups of
species, invasive and/or keystone species
"Old Growth" forest - CORRECT ANSWER -
rarely if ever logged (doesn't mean "undisturbed")
"Rich" soil - CORRECT ANSWER -lots of available nutrients for plant growth
Abiotic conditions on MSH - CORRECT ANSWER -
wet, snow, infrequent fires, infrequent volcanic effects
Structural elements - CORRECT ANSWER -
large quantities to make biomass (weight of living tissue) of plant
Macronutrients - CORRECT ANSWER -
large quantities to make nucleic acids (DNA) and amino acids (proteins)
Micronutrients - CORRECT ANSWER -small quantities to make coenzymes, etc.
, Where does carbon, hydrogen, and oxygen come from - CORRECT ANSWER -
Photosynthesis! From structural elements
Why do plants need Nitrogen? - CORRECT ANSWER -
Chlorophyll (photosynthesis), proteins, enzymes, ATP, DNA (Nitrogenous bases: ACTG)
Explain the importance of proteins and their structure - CORRECT ANSWER -
Made of amino acids. Made using ribosomes and an mRNA template. Can denature when t
oo hot
What dictates the function of a protein? - CORRECT ANSWER -Amino acid structure
How do plants obtain Nitrogen? - CORRECT ANSWER -Through their roots
How does Nitrogen get into the soil? - CORRECT ANSWER -
Through nitrogen fixation in the N-cycle
Individuals - CORRECT ANSWER -
will grow only up to the point it runs out of a vital resource, even if there are surpluses in
other categories
Populations - CORRECT ANSWER -
will grow only up to the point that they run out of a vital resource
What kind of interaction is a symbiotic one? - CORRECT ANSWER -
Interspecific interaction in which two species live together in a long-
term, intimate association
Correct Answers 2026
Ecosystem - CORRECT ANSWER -
A community of living organisms and their interactions with each other and their physical e
nvironment; no boundaries
Environment (Abiotic) - CORRECT ANSWER -Climate, Geology, Disturbance, Site history
Organisms (Biotic) - CORRECT ANSWER -
Biodiversity, Species interactions, distribution and quantity of individual species or groups of
species, invasive and/or keystone species
"Old Growth" forest - CORRECT ANSWER -
rarely if ever logged (doesn't mean "undisturbed")
"Rich" soil - CORRECT ANSWER -lots of available nutrients for plant growth
Abiotic conditions on MSH - CORRECT ANSWER -
wet, snow, infrequent fires, infrequent volcanic effects
Structural elements - CORRECT ANSWER -
large quantities to make biomass (weight of living tissue) of plant
Macronutrients - CORRECT ANSWER -
large quantities to make nucleic acids (DNA) and amino acids (proteins)
Micronutrients - CORRECT ANSWER -small quantities to make coenzymes, etc.
, Where does carbon, hydrogen, and oxygen come from - CORRECT ANSWER -
Photosynthesis! From structural elements
Why do plants need Nitrogen? - CORRECT ANSWER -
Chlorophyll (photosynthesis), proteins, enzymes, ATP, DNA (Nitrogenous bases: ACTG)
Explain the importance of proteins and their structure - CORRECT ANSWER -
Made of amino acids. Made using ribosomes and an mRNA template. Can denature when t
oo hot
What dictates the function of a protein? - CORRECT ANSWER -Amino acid structure
How do plants obtain Nitrogen? - CORRECT ANSWER -Through their roots
How does Nitrogen get into the soil? - CORRECT ANSWER -
Through nitrogen fixation in the N-cycle
Individuals - CORRECT ANSWER -
will grow only up to the point it runs out of a vital resource, even if there are surpluses in
other categories
Populations - CORRECT ANSWER -
will grow only up to the point that they run out of a vital resource
What kind of interaction is a symbiotic one? - CORRECT ANSWER -
Interspecific interaction in which two species live together in a long-
term, intimate association
