Animal responses 1 Flashcards
What is the main function of the nervous system in animals?
To coordinate and control body activities by transmitting signals between different parts of the body.
True or False: The central nervous system consists of the brain and spinal cord.
True
Fill in the blank: The __________ is responsible for processing sensory information and making decisions.
brain
What are the two main divisions of the nervous system?
Central nervous system and peripheral nervous system.
What is a reflex action?
An involuntary and immediate response to a stimulus.
Multiple Choice: Which part of the neuron receives signals from other neurons? A) Axon B) Dendrite C) Synapse D) Myelin
B) Dendrite
What role do neurotransmitters play in the nervous system?
They are chemicals that transmit signals across the synapse from one neuron to another.
True or False: The autonomic nervous system controls voluntary muscle movements.
False
What is the function of the somatic nervous system?
It controls voluntary movements and transmits sensory information to the central nervous system.
Fill in the blank: The __________ nervous system regulates involuntary bodily functions such as heart rate and digestion.
autonomic
What is the difference between sympathetic and parasympathetic nervous systems?
The sympathetic nervous system prepares the body for ‘fight or flight’ responses, while the parasympathetic nervous system promotes ‘rest and digest’ functions.
Multiple Choice: Which of the following is NOT a type of muscle tissue? A) Cardiac B) Smooth C) Epithelial D) Skeletal
C) Epithelial
What is the role of hormones in animal responses?
Hormones are chemical messengers that regulate physiological processes and can influence behavior.
True or False: Animals can respond to their environment through both nervous and hormonal responses.
True
What is homeostasis?
The process by which living organisms maintain a stable internal environment despite external changes.
Fill in the blank: __________ is a type of movement in animals that occurs in response to an environmental stimulus.
Taxis
What is the primary function of the hypothalamus in the brain?
To regulate homeostasis and control the autonomic nervous system.
Multiple Choice: Which type of sensory receptor is responsible for detecting light? A) Mechanoreceptor B) Photoreceptor C) Chemoreceptor D) Thermoreceptor
B) Photoreceptor
What is the significance of the fight or flight response?
It prepares the body to react quickly to perceived threats.
True or False: All animal responses are conscious and voluntary.
False
What is a stimulus?
Any change in the environment that elicits a response from an organism.
Fill in the blank: __________ is the term for the gradual change in an animal’s behavior due to repeated exposure to a stimulus.
Habituation
What is the role of the spinal cord in reflex actions?
It acts as a conduit for signals between the brain and the body and can process reflex responses independently.
Multiple Choice: Which of the following is a response to a stimulus? A) Sleeping B) Eating C) Shivering D) All of the above
D) All of the above
