BIO 121 UPDATED ACTUAL Exam
Questions and CORRECT Answers
Biology - CORRECT ANSWER - the scientific study of life
Prokaryote - CORRECT ANSWER - unicellular organism that lacks a nucleus
Eukaryote - CORRECT ANSWER - More complex cells that contain a nucleus
Homeostasis - CORRECT ANSWER - process by which organisms maintain a relatively
stable internal environment
Autotroph - CORRECT ANSWER - an organism that can produce its own food using
light, water, carbon dioxide, or other chemicals
Homogulous Structures - CORRECT ANSWER - structures that are similar in different
species of common ancestry
Taxonomic Hierarchy - CORRECT ANSWER - Domain, Kingdom, Phylum, Class, Order,
Family, Genus, Species (dear King Philip came over for great spaghetti)
Internal Stimuli - CORRECT ANSWER - cues from within an animal for survival;
(hunger, thirst, sleepiness, pain)
External stimuli - CORRECT ANSWER - Light sound temperature touch and smells
Describe the flow of energy in an ecosystem - CORRECT ANSWER - Sun-----> Plants----
->1st Consumer----->2nd Consumer-------->Decomposer
, Photosynthesis - CORRECT ANSWER - Plants use the sun's energy to convert water and
carbon dioxide into sugars
Heterotroph - CORRECT ANSWER - organism that obtains energy from the foods it
consumes
Decomposers - CORRECT ANSWER - organisms that break down wastes and dead
organisms and return raw materials to the environment
How do you multicellular and unicellular organisms grow? - CORRECT ANSWER -
Multicellular produces more cells and unicellular enlarge cells after division
Reproduction - CORRECT ANSWER - the process of producing offspring of the same
type
Anabolism - CORRECT ANSWER - Simple molecules to complex
Catabolism - CORRECT ANSWER - Complex molecules to simple
DNA - CORRECT ANSWER - A complex molecule containing the genetic information
that makes up the chromosomes. Unity and diversity of life is based on DNA
Name the 3 domains of life - CORRECT ANSWER - Bacteria, Archaea, Eukarya
Evolution - CORRECT ANSWER - Change in a kind of organism over time; process by
which modern organisms have descended from ancient organisms.
genetic variation - CORRECT ANSWER - Differences among individuals in the
composition of their genes or other DNA segments
Questions and CORRECT Answers
Biology - CORRECT ANSWER - the scientific study of life
Prokaryote - CORRECT ANSWER - unicellular organism that lacks a nucleus
Eukaryote - CORRECT ANSWER - More complex cells that contain a nucleus
Homeostasis - CORRECT ANSWER - process by which organisms maintain a relatively
stable internal environment
Autotroph - CORRECT ANSWER - an organism that can produce its own food using
light, water, carbon dioxide, or other chemicals
Homogulous Structures - CORRECT ANSWER - structures that are similar in different
species of common ancestry
Taxonomic Hierarchy - CORRECT ANSWER - Domain, Kingdom, Phylum, Class, Order,
Family, Genus, Species (dear King Philip came over for great spaghetti)
Internal Stimuli - CORRECT ANSWER - cues from within an animal for survival;
(hunger, thirst, sleepiness, pain)
External stimuli - CORRECT ANSWER - Light sound temperature touch and smells
Describe the flow of energy in an ecosystem - CORRECT ANSWER - Sun-----> Plants----
->1st Consumer----->2nd Consumer-------->Decomposer
, Photosynthesis - CORRECT ANSWER - Plants use the sun's energy to convert water and
carbon dioxide into sugars
Heterotroph - CORRECT ANSWER - organism that obtains energy from the foods it
consumes
Decomposers - CORRECT ANSWER - organisms that break down wastes and dead
organisms and return raw materials to the environment
How do you multicellular and unicellular organisms grow? - CORRECT ANSWER -
Multicellular produces more cells and unicellular enlarge cells after division
Reproduction - CORRECT ANSWER - the process of producing offspring of the same
type
Anabolism - CORRECT ANSWER - Simple molecules to complex
Catabolism - CORRECT ANSWER - Complex molecules to simple
DNA - CORRECT ANSWER - A complex molecule containing the genetic information
that makes up the chromosomes. Unity and diversity of life is based on DNA
Name the 3 domains of life - CORRECT ANSWER - Bacteria, Archaea, Eukarya
Evolution - CORRECT ANSWER - Change in a kind of organism over time; process by
which modern organisms have descended from ancient organisms.
genetic variation - CORRECT ANSWER - Differences among individuals in the
composition of their genes or other DNA segments
