Biology 1108 exam 3 exam, questions with accurate answers | multiple choices
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species - -A group of similar organisms that can breed and produce fertile offspring.
--population - -all of the individuals of a single species that interact
--community - -all of the populations of living things that interact in a place
--ecosystem - -a biological community of interacting organisms and their physical
environment (living and non-living variables)
--climate, geology, disturbance - -3 examples of abiotic features of an ecosystem
--there is more diversity towards the poles, so as we ascend a mountain, we experience
ecosystems that change as a result of levitation - -Why do mountains have increased diverse
ecosystems?
--old growth forest - -complex forest that has developed over a long period of time and is
relatively untouched by human activity
--no, mountains have lots of different ecosystems that change with elevation - -Was pre-
eruption MSH a homogenous species?
--May 18th, 1980 - -Mount Saint Helens erupted on...
--lateral - -What kind of explosion was MSH?
--northern slope - -The explosion of MSH heavily affected the _______________ of the
volcano.
--snow acted as a buffer - -Following MSH's eruption, there were small surviving plants and
animals because of which buffer?
--pyroclastic flow/pumice plain - -Most highly impacted plain of MSH; adjacent to the
volcano (north); there were no remnants
--blown down zone / lateral blast - -The majority of the area affected by MSH's explosion is
referred to as the _________________.
--blown down zone / lateral blast - -This is the largest area affected by MSH's explosion, and
it consisted of miles of forests; trees remained on their sides. Some lifeforms underground
possibly survived.
--spirit lake - -a lake clogged with trees and ash on MSH; contains hot springs
--pumice plain - -Following the explosion of MSH, everything in the __________________
was covered up to 6 feet of tephra/volcanic ash.
, --No, it is devoid of nutrients, so the area impacted by the volcanic ash became dust - -Does
tephra/volcanic ash contain a lot of nutrients?
--plant dispersal - -how seeds and spores are spread from the parent plant
--wind dispersal - -The type of dispersal that blows and can carry seeds long distances but
the seeds land at random; seeds must also be small and light.
--seed coat, cotyledon, and embryo - -What are the 3 parts of a seed?
--protects seed from being eaten by insect, could stay intact if pass through digestive
system, resists being crushed and losing dampness - -3 advantages of a thick seed coat
--faster germination - -1 advantage of a thin seed coat
--cotyledon - -A "seed leaf" which develops as a part of the seed. It provides nutrients to the
developing seedling and eventually becomes the first leaf of the plant.
(*food storage as fats and oils*)
--peanut - -example of cotyledon
--too large to be eaten, stores more energy, lasts longer before germination, more likely to
survive, can grow quickly - -5 advantages of a large cotyledon
--cannot disperse far - -1 disadvantage of a large cotyledon
--more easily transportable, can produce more - -2 advantages of a small cotyledon
--small, light wind dispersed seeds - -Which plants were most likely to reach MSH first?
--lupine - -First plant to survive on MSH/pumice plain?
--lupine had the largest cotyledon; it could store energy and maintain moisture - -Why were
lupines the first species to establish in the pumice plain if they were unlikely to be the first
seeds present?
--arrive, survive - -2 requirements for seed survival
--macronutrients, micronutrients - -What are the two categories of essential nutrients for
plants?
--NPK fertilizer - nitrogen, phosphorus, potassium - -Macronutrients include which 3
elements comprising a fertilizer?
--nucleic acids and amino acids - -Macronutrients / NPK fertilizer is needed in large
quantities to create...
|!!
species - -A group of similar organisms that can breed and produce fertile offspring.
--population - -all of the individuals of a single species that interact
--community - -all of the populations of living things that interact in a place
--ecosystem - -a biological community of interacting organisms and their physical
environment (living and non-living variables)
--climate, geology, disturbance - -3 examples of abiotic features of an ecosystem
--there is more diversity towards the poles, so as we ascend a mountain, we experience
ecosystems that change as a result of levitation - -Why do mountains have increased diverse
ecosystems?
--old growth forest - -complex forest that has developed over a long period of time and is
relatively untouched by human activity
--no, mountains have lots of different ecosystems that change with elevation - -Was pre-
eruption MSH a homogenous species?
--May 18th, 1980 - -Mount Saint Helens erupted on...
--lateral - -What kind of explosion was MSH?
--northern slope - -The explosion of MSH heavily affected the _______________ of the
volcano.
--snow acted as a buffer - -Following MSH's eruption, there were small surviving plants and
animals because of which buffer?
--pyroclastic flow/pumice plain - -Most highly impacted plain of MSH; adjacent to the
volcano (north); there were no remnants
--blown down zone / lateral blast - -The majority of the area affected by MSH's explosion is
referred to as the _________________.
--blown down zone / lateral blast - -This is the largest area affected by MSH's explosion, and
it consisted of miles of forests; trees remained on their sides. Some lifeforms underground
possibly survived.
--spirit lake - -a lake clogged with trees and ash on MSH; contains hot springs
--pumice plain - -Following the explosion of MSH, everything in the __________________
was covered up to 6 feet of tephra/volcanic ash.
, --No, it is devoid of nutrients, so the area impacted by the volcanic ash became dust - -Does
tephra/volcanic ash contain a lot of nutrients?
--plant dispersal - -how seeds and spores are spread from the parent plant
--wind dispersal - -The type of dispersal that blows and can carry seeds long distances but
the seeds land at random; seeds must also be small and light.
--seed coat, cotyledon, and embryo - -What are the 3 parts of a seed?
--protects seed from being eaten by insect, could stay intact if pass through digestive
system, resists being crushed and losing dampness - -3 advantages of a thick seed coat
--faster germination - -1 advantage of a thin seed coat
--cotyledon - -A "seed leaf" which develops as a part of the seed. It provides nutrients to the
developing seedling and eventually becomes the first leaf of the plant.
(*food storage as fats and oils*)
--peanut - -example of cotyledon
--too large to be eaten, stores more energy, lasts longer before germination, more likely to
survive, can grow quickly - -5 advantages of a large cotyledon
--cannot disperse far - -1 disadvantage of a large cotyledon
--more easily transportable, can produce more - -2 advantages of a small cotyledon
--small, light wind dispersed seeds - -Which plants were most likely to reach MSH first?
--lupine - -First plant to survive on MSH/pumice plain?
--lupine had the largest cotyledon; it could store energy and maintain moisture - -Why were
lupines the first species to establish in the pumice plain if they were unlikely to be the first
seeds present?
--arrive, survive - -2 requirements for seed survival
--macronutrients, micronutrients - -What are the two categories of essential nutrients for
plants?
--NPK fertilizer - nitrogen, phosphorus, potassium - -Macronutrients include which 3
elements comprising a fertilizer?
--nucleic acids and amino acids - -Macronutrients / NPK fertilizer is needed in large
quantities to create...
