BISC 1005 Final Questions and Correct Answers/
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abiotic
Ans: any substance that is not organic (ex gases, water, minerals) non-living
autotrophic
Ans: an organism that can produce its own organic molecules, also known as food,
from an abiotic source
bacteria
Ans: a prokaryotic lineage of organisms that can interact with your body and
used in the production of food.
biotic
Ans: anything that is living + organic substances
cell
Ans: a self-contained functional unit of life
cell Membrane
Ans: the barrier that protects cells and manages which substances go in or out
chemoautotrophic
Ans: organisms that make their own food molecules from chemical energy
chemoheterotrophic
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Ans: (humans!) organisms that use chemical energy to break down the food to
smaller bits so that we can absorb it and make our own big molecules out of it. The
process of being chemoheterotrophic means that we have to consume already
existing organic molecules (food) and break them down using chemical energy
commensalistic relationship
Ans: an organism that has a relationship with another organism where one gets
something helpful and the other is unaffected. Example: a barnacle on an oyster.
The oyster isn't helped out, but the barnacle gets a place to stay
Competitive Relationship
Ans: an interaction between two organisms where both are harmed. Example:
birds; they use the same resources
DNA
Ans: the molecule of inheritance
ecosystem
Ans: any defined area with all its biotic and abiotic components
energy
Ans: the inherent quality to cause change
kinetic energy
Ans: energy that is being used
potential energy
Ans: energy that is being stored
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thermal energy
Ans: kinetic energy associated with the random movement of atoms and molecules
chemical energy
Ans: potential energy available for release in a chemical reaction
eukaryotes
Ans: any organism that has a complex, compartmentalized cellular structure
evolution
Ans: the process of change in groups at the basic level populations over time
exploitive relationship
Ans: one organism profits and the other is harmed to varying degrees. Examples:
herbivores, predators, and parasites
food
Ans: an organic molecule that can be used for energy production
food web
Ans: a diagram of food relationships among species in an ecosystem. it's different
from a food chain, which shows only the organisms that are the diet of the top
consumer
herbivore
Ans: an organism that eats vegetation
heterotrophic
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Ans: an organism that must consume other organisms in order to obtain organic
molecules
homeostasis
Ans: process by which organisms maintain a relatively stable internal environment
microbes
Ans: an organism that is too small to see with your eye
mutualistic relationship
Ans: a relationship between two organisms that is helpful to both of them in some
aspect. Example: there are a ton of microbes that live in our gut and are fed , but
they, in turn provide vitamins for us so we get the benefit of getting vitamins that
we couldn't produce on our own
organic substance
Ans: any substance that has at least one carbon atom and one hydrogen atom
organism
Ans: an individual thing that is considered living
parasite
Ans: an organism that lives in or on another organism and causes it harm
photoautotrophic
Ans: means you can produce your own organic molecule from light energy
(example: plants make food using sunlight)
photoheterotrophic