Biology 1407 Exam test quizzes and
answers graded A+
abiotic - ANS✅✅non-living
autotroph - ANS✅✅An organism that makes its own food.
asexual reproduction - ANS✅✅a reproductive process that involves only one parent and produces
offspring that are identical to the parent
biotic - ANS✅✅living
biosphere - ANS✅✅Consists of all life on Earth and all parts of the Earth in which life exists,
including land, water, and the atmosphere.
cell specialization - ANS✅✅Cells throughout an organism can develop in different ways to perform
different tasks.
cell differentation - ANS✅✅Process by which cells become different types of cells
carbon cycle - ANS✅✅Cyclic movement of carbon in different chemical forms from the
environment to organisms and then back to the environment.
cell differentiation - ANS✅✅the process by which a cell becomes specialized for a specific
structure or function
chemical bond - ANS✅✅the attractive force that holds atoms or ions together where the energy in
a compound is stored
chromosome pair - ANS✅✅identical copies of a single chromosome
copy of mom chromosome 1 next to mom chromosome 1
consumer - ANS✅✅an organism that obtains energy by feeding on other organisms
, deletion - ANS✅✅the loss of a part of DNA from a chromosome
detritivore - ANS✅✅An organism (like the earthworm) that feeds on decaying matter after it has
been broken down by decomposers.
DNA - ANS✅✅deoxyribonucleic acid; the genetic material that carries information about an
organism that is passed from parent to offspring AND is used by an individual as the recipe for
making proteins
DNA sequence - ANS✅✅The sequence, or order, in which the nitrogenous bases adenine (A),
cytosine (C), guanine (G), and thymine (T) are arranged in a gene or a DNA fragment, or in an
organism's genome.
double helix - ANS✅✅two strands of nucleotides wound about each other; structure of DNA
ecosystem stability - ANS✅✅the total number of species is fairly consistant from year to year---the
same species were present each year--- the population size of each species was approximately the
same from year to year
endangered species - ANS✅✅A species whose numbers are so small that the species is at risk of
extinction
exponential growth - ANS✅✅growth pattern in which the individuals in a population reproduce at
a constant rate
food web - ANS✅✅a community of organisms where there are several interrelated food chains
gene - ANS✅✅sequence of DNA that codes for a protein and thus determines a trait
genetic diversity - ANS✅✅the amount of variation in the genetic material within all members of a
popualtion
genetic variation - ANS✅✅The variety of different types of genes in a species or population.
answers graded A+
abiotic - ANS✅✅non-living
autotroph - ANS✅✅An organism that makes its own food.
asexual reproduction - ANS✅✅a reproductive process that involves only one parent and produces
offspring that are identical to the parent
biotic - ANS✅✅living
biosphere - ANS✅✅Consists of all life on Earth and all parts of the Earth in which life exists,
including land, water, and the atmosphere.
cell specialization - ANS✅✅Cells throughout an organism can develop in different ways to perform
different tasks.
cell differentation - ANS✅✅Process by which cells become different types of cells
carbon cycle - ANS✅✅Cyclic movement of carbon in different chemical forms from the
environment to organisms and then back to the environment.
cell differentiation - ANS✅✅the process by which a cell becomes specialized for a specific
structure or function
chemical bond - ANS✅✅the attractive force that holds atoms or ions together where the energy in
a compound is stored
chromosome pair - ANS✅✅identical copies of a single chromosome
copy of mom chromosome 1 next to mom chromosome 1
consumer - ANS✅✅an organism that obtains energy by feeding on other organisms
, deletion - ANS✅✅the loss of a part of DNA from a chromosome
detritivore - ANS✅✅An organism (like the earthworm) that feeds on decaying matter after it has
been broken down by decomposers.
DNA - ANS✅✅deoxyribonucleic acid; the genetic material that carries information about an
organism that is passed from parent to offspring AND is used by an individual as the recipe for
making proteins
DNA sequence - ANS✅✅The sequence, or order, in which the nitrogenous bases adenine (A),
cytosine (C), guanine (G), and thymine (T) are arranged in a gene or a DNA fragment, or in an
organism's genome.
double helix - ANS✅✅two strands of nucleotides wound about each other; structure of DNA
ecosystem stability - ANS✅✅the total number of species is fairly consistant from year to year---the
same species were present each year--- the population size of each species was approximately the
same from year to year
endangered species - ANS✅✅A species whose numbers are so small that the species is at risk of
extinction
exponential growth - ANS✅✅growth pattern in which the individuals in a population reproduce at
a constant rate
food web - ANS✅✅a community of organisms where there are several interrelated food chains
gene - ANS✅✅sequence of DNA that codes for a protein and thus determines a trait
genetic diversity - ANS✅✅the amount of variation in the genetic material within all members of a
popualtion
genetic variation - ANS✅✅The variety of different types of genes in a species or population.
