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Dichotomous Keys And Adaptations
Test Description: Dichotomous Keys and Adaptations
Instructions: Answer all questions to get your test result.
1) Define physiology.
A
A characteristic of an organism; can be genetic or acquired.
B
A group of interacting individuals of the same species located in the same area.
C
A population becomes better suited to its environment.
D
The study of internal and external functions of living systems.
2) Define population.
A
A characteristic of an organism; can be genetic or acquired.
B
The study of internal and external functions of living systems.
C
A population becomes better suited to its environment, so that it can survive and reproduce.
D
A group of interacting individuals of the same species located in the same area.
3) Define adaptation.
A
A population becomes better suited to its environment, so that it can survive and reproduce.
B
A characteristic of an organism; can be genetic or acquired
C
The study of internal and external functions of living systems.
D
A group of interacting individuals of the same species located in the same area.
4) Define variation.
A
The occurrence of an organism, trait, or gene in more than one form. Many different types of species.
B
A parent is a member of one generation, and its offspring are members of the next generation.
C
A slowed physiological state of an organism to survive long periods of cold temperature or reduced food supplies.
D
Movement to a different geographical region where conditions are more favorable.
5) Define migration.
A
A slowed physiological state of an organism to survive long periods of cold temperature or reduced food supplies.
B
The occurrence of an organism, trait, or gene in more than one form.
C
A parent is a member of one generation, and its offspring are members of the next generation.
D
Movement to a different geographical region where conditions are more favorable.
6) Define hibernation.
A
A parent is a member of one generation, and its offspring are members of the next generation.
B
A slowed physiological state of an organism to survive long periods of cold temperature or reduced food supplies.
C
The occurrence of an organism, trait, or gene in more than one form.
D
Movement to a different geographical region where conditions are more favorable.
7) Define natural selection.
A
An offspring resulting from the cross of two different species or subspecies.
B
The occurrence of an organism, trait, or gene in more than one form.
C
A form of artificial selection whereby deliberate breeding results in desired traits in plants or animals.
D
Organisms with favorable traits produce more successful offspring causing the favorable traits to become more common.
8) Define hybrid.
A
Organisms with favorable traits produce more successful offspring causing the favorable traits to become more common.
B
A form of artificial selection whereby deliberate breeding results in desired traits in plants or animals.
C
The occurrence of an organism, trait, or gene in more than one form.
D
An offspring resulting from the cross of two different species or subspecies.
9) Define selective breeding.
A
An offspring resulting from the cross of two different species or subspecies.
B
Organisms with favorable traits produce more successful offspring causing the favorable traits to become more common.
C
A form of artificial selection whereby deliberate breeding results in desired traits in plants or animals.
D
The occurrence of an organism, trait, or gene in more than one form.
10) A genetic characteristic that allows an organism to survive and reproduce
A
Selective Breeding
B
Adaptation
C
Natural Selection
D
Hibernation
11) A characteristic of some animals to enter a state of deep sleep during the winter months.
A
Selective Breeding
B
Hibernation
C
Hybridization
D
Natural Selection
12) The monarch butterfly’s response to seasonal changes by traveling a far distance is known as
A
Migration
B
Hibernation
C
behavioral
D
structural
13) The white fur of an arctic fox helps camouflage it in winter. This is an example of a
A
behavioral adaptation
B
structural adaptation
14) The hibernation of bears during winter months is a __________ adaptation.
A
behavioral
B
structural
15) ___________ is an internal adaptation that allows plants to carry water up their stem.
A
Xylem
B
Structural
C
Migration
D
Behavioral
16) Which of the following is most helpful for identifying an organism using a dichotomous key?
A
Its habitat.
B
Its sources of food.
C
Its average lifespan.
D
Its physical structures.
17) student makes observations of a tree in a nearby forest. Which of the following observations of the tree’s characteristics would be useful in determining its identity with a dichotomous key?
A
Its branches were recently cut.
B
Its leaves are long and narrow.
C
It contains the nests of several birds.
D
It provides shade for ground brush.
18) ______________are a group of individuals that can interbreed with one another.
A
Species
B
Taxonomy
C
Observations
D
Dichotomous Key
19) A _______________________is a tool used to identify or classify organisms.
A
Dichotomous Key
B
Observations
C
Species
D
Taxonomy
20) Define taxonomy.
A
The branch of science that formally names and classifies organisms by their structure, function, and relationships.
B
A tool used to identify or classify organisims.
C
A group of individuals that can interbreed with one another.
*select an answer for all questions
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