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Biology 1108 Questions with Answers (100% Correct
Answers)
Washington— Answer: Where did the eruption of Mount Saint Helen
take place?
pyroclastic flow (plumice plan)— Answer: during the eruption, this area
got up to 800ºF and afterwards was absent of all life, covered in 6ft of
tephra, and looked like a moonscape
tephra— Answer: mix of tiny glass particles formed by the cooling of
magma droplets and pulverized rock
climate, disturbances, geology, hydrology, topography, soil type,
glaciation— Answer: What are some examples of an abiotic
environment?
species richness, biodiversity, species interactions, keystone species,
and invasive species— Answer: What are some examples of biotic
organisms?
temperate rainforest— Answer: high species richness and high
biodiversity
© 2025 All rights reserved
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underground dens— Answer: How did some mammals survive the
eruption?
biological legacy— Answer: carryover of living and dead, organic
material that was present beforehand
air, light, water, soil— Answer: What are the 4 things plants need for
survival?
50-75% water— Answer: What percentage of plants is made up of
water?
25-50%— Answer: What percentage of plants is made up of biomass?
Carbon 50%, Oxygen 42%, Hydrogen 1%— Answer: What are the 3
structural elements?
structural elements— Answer: CO2, H2O, and O2 are needed in large
quantities to make the basic biomass/structure of plants
1.5%— Answer: What percentage of nitrogen makes up a plant's
biomass?
DNA, ATP, Chlorophyll, Amino Acids— Answer: Why do plants need
Nitrogen?
© 2025 All rights reserved
Biology 1108 Questions with Answers (100% Correct
Answers)
Washington— Answer: Where did the eruption of Mount Saint Helen
take place?
pyroclastic flow (plumice plan)— Answer: during the eruption, this area
got up to 800ºF and afterwards was absent of all life, covered in 6ft of
tephra, and looked like a moonscape
tephra— Answer: mix of tiny glass particles formed by the cooling of
magma droplets and pulverized rock
climate, disturbances, geology, hydrology, topography, soil type,
glaciation— Answer: What are some examples of an abiotic
environment?
species richness, biodiversity, species interactions, keystone species,
and invasive species— Answer: What are some examples of biotic
organisms?
temperate rainforest— Answer: high species richness and high
biodiversity
© 2025 All rights reserved
, 2
underground dens— Answer: How did some mammals survive the
eruption?
biological legacy— Answer: carryover of living and dead, organic
material that was present beforehand
air, light, water, soil— Answer: What are the 4 things plants need for
survival?
50-75% water— Answer: What percentage of plants is made up of
water?
25-50%— Answer: What percentage of plants is made up of biomass?
Carbon 50%, Oxygen 42%, Hydrogen 1%— Answer: What are the 3
structural elements?
structural elements— Answer: CO2, H2O, and O2 are needed in large
quantities to make the basic biomass/structure of plants
1.5%— Answer: What percentage of nitrogen makes up a plant's
biomass?
DNA, ATP, Chlorophyll, Amino Acids— Answer: Why do plants need
Nitrogen?
© 2025 All rights reserved
