Exam 1 (Ch's. 1,3,&4) - BIO 425 Questions
with correct Answers
A single complete individual capable of response to stimuli, reproduction, growth and
development, and maintenance of homeostasis is termed a living {blank} - correct
answers✔✔ organism
Responsiveness is also known as: metabolism
stimuli
excitability
growth - correct answers✔✔ excitability
Without the expenditure of energy, the net movement of matter in a physiological gradient
will always be from a region of ______ concentration to a region of ______ concentration.:
lower, higher
higher, lower - correct answers✔✔ higher, lower
What is a cell or organ that is specialized to detect a stimulus called? 1) integrator 2) receptor
3) Effector - correct answers✔✔ Receptor
What is an integrator? - correct answers✔✔ The integrating center of a feedback mechanism
processes information, relates it to other information, and makes a decision of action.
What is an effector? - correct answers✔✔ An effector is a molecule, cell, or organ that carries
out a response to a stimulus.
,What is the plural form of cortex?
Cortexes
Cortices
Corti - correct answers✔✔ Cortices
An organ is best described as which of the following?
1) A structure composed of at least two different tissues, with recognizable boundaries, and
with a discrete function
2) Two or more organs, that work together for a common function
3) The smallest unit of an organism that can carry out all the functions of life
4) A single complete individual
5) A group of cells working together for a common function - correct answers✔✔ 1) A
structure composed of at least two different tissues, with recognizable boundaries, and with a
discrete function
Students are studying the shape, size, and parts of the heart. They are studying the ______ of
the heart.
anatomy
chemistry
physiology
physics - correct answers✔✔ anatomy
A branch of medicine that utilizes medical imaging technologies to explore the interior of the
body is called (blank). - correct answers✔✔ radiology
Who is known as the father of the theory of natural selection? - correct answers✔✔ Charles
Darwin
,True or false: A tissue is more complex than an organ. - correct answers✔✔ False
True or false: The study of ultrastructure focuses on examining individual cells, but not the
fine details of cells. - correct answers✔✔ False
Changes in the environment, to which organisms respond, are called what?
1) Signals
2) Effectors
3) Stimuli
4) Receptors - correct answers✔✔ Stimuli
What are signals? - correct answers✔✔ The signals that organisms respond to are called
stimuli. A stimulus is detected by a receptor.
A change in the genetic composition of a population of organisms over a period of time is
called - correct answers✔✔ Evolution
Which of the following are features of an arboreal habitat?
1)Relative safety from predators
2)Relatively less competition
3)Slow moving prey items
4)Rich supply of leaves and fruit - correct answers✔✔ 2) Relatively less competition
1) Relative safety from predators
4)Rich supply of leaves and fruit
, Organelles are composed of (blank)
1) organs
2) cells
3) tissues
4) molecules - correct answers✔✔ 4) molecules
The study of individual cells is called ______.
histology
anatomy
histopathology
cytology - correct answers✔✔ cytology
Which of the following describes a single complete individual?
Organ system
Organelle
Organism
Atom
Organ - correct answers✔✔ Organism
what is an atom? - correct answers✔✔ Atoms are the smallest particles with unique chemical
identities.
what is an organelle? - correct answers✔✔ Organelles are microscopic structures in a cell that
carry out its individual functions.
Which habitat refers to living in the trees?
Marine
with correct Answers
A single complete individual capable of response to stimuli, reproduction, growth and
development, and maintenance of homeostasis is termed a living {blank} - correct
answers✔✔ organism
Responsiveness is also known as: metabolism
stimuli
excitability
growth - correct answers✔✔ excitability
Without the expenditure of energy, the net movement of matter in a physiological gradient
will always be from a region of ______ concentration to a region of ______ concentration.:
lower, higher
higher, lower - correct answers✔✔ higher, lower
What is a cell or organ that is specialized to detect a stimulus called? 1) integrator 2) receptor
3) Effector - correct answers✔✔ Receptor
What is an integrator? - correct answers✔✔ The integrating center of a feedback mechanism
processes information, relates it to other information, and makes a decision of action.
What is an effector? - correct answers✔✔ An effector is a molecule, cell, or organ that carries
out a response to a stimulus.
,What is the plural form of cortex?
Cortexes
Cortices
Corti - correct answers✔✔ Cortices
An organ is best described as which of the following?
1) A structure composed of at least two different tissues, with recognizable boundaries, and
with a discrete function
2) Two or more organs, that work together for a common function
3) The smallest unit of an organism that can carry out all the functions of life
4) A single complete individual
5) A group of cells working together for a common function - correct answers✔✔ 1) A
structure composed of at least two different tissues, with recognizable boundaries, and with a
discrete function
Students are studying the shape, size, and parts of the heart. They are studying the ______ of
the heart.
anatomy
chemistry
physiology
physics - correct answers✔✔ anatomy
A branch of medicine that utilizes medical imaging technologies to explore the interior of the
body is called (blank). - correct answers✔✔ radiology
Who is known as the father of the theory of natural selection? - correct answers✔✔ Charles
Darwin
,True or false: A tissue is more complex than an organ. - correct answers✔✔ False
True or false: The study of ultrastructure focuses on examining individual cells, but not the
fine details of cells. - correct answers✔✔ False
Changes in the environment, to which organisms respond, are called what?
1) Signals
2) Effectors
3) Stimuli
4) Receptors - correct answers✔✔ Stimuli
What are signals? - correct answers✔✔ The signals that organisms respond to are called
stimuli. A stimulus is detected by a receptor.
A change in the genetic composition of a population of organisms over a period of time is
called - correct answers✔✔ Evolution
Which of the following are features of an arboreal habitat?
1)Relative safety from predators
2)Relatively less competition
3)Slow moving prey items
4)Rich supply of leaves and fruit - correct answers✔✔ 2) Relatively less competition
1) Relative safety from predators
4)Rich supply of leaves and fruit
, Organelles are composed of (blank)
1) organs
2) cells
3) tissues
4) molecules - correct answers✔✔ 4) molecules
The study of individual cells is called ______.
histology
anatomy
histopathology
cytology - correct answers✔✔ cytology
Which of the following describes a single complete individual?
Organ system
Organelle
Organism
Atom
Organ - correct answers✔✔ Organism
what is an atom? - correct answers✔✔ Atoms are the smallest particles with unique chemical
identities.
what is an organelle? - correct answers✔✔ Organelles are microscopic structures in a cell that
carry out its individual functions.
Which habitat refers to living in the trees?
Marine
