Which cells carry nutrients from food to the rest of the cells in the body?(1 point)
Responses
nerve cells
nerve cells
blood cells
blood cells
muscle cells
muscle cells
stomach cells
stomach cells
Question 2
How are blood cells and stomach cells similar?(1 point)
Responses
Both secrete enzymes.
Both secrete enzymes.
Both help with digestion.
Both help with digestion.
Both help maintain homeostasis.
Both help maintain homeostasis.
Both send signals in the body.
Both help with digestion.
Answer both
Both secrete enzymes and both help with digestion.
Which cells carry nutrients from food to the rest of the cells in the body?(1 point)
Responses
nerve cells
nerve cells
blood cells
blood cells
muscle cells
muscle cells
stomach cells
blood cells
within multicellular organisms (from least complex to most complex)?(1 point)
Responses
cell → tissue → organ → organ system → organism
cell → tissue → organ → organ system → organism
tissue → organ system → organ → organism → cell
tissue → organ system → organ → organism → cell
organ → organ system → cell → organism → tissue
organ → organ system → cell → organism → tissue
cell → organ → organ system → tissue → organism
cell → organ → organ system → tissue → organism
Question 4
Which statement is true?(1 point)
Responses
Bones are organ systems.
Bones are organ systems.
Bones provide shape to the body.
Bones provide shape to the body.
Bones help the heart pump blood.
Bones help the heart pump blood.
Bones are composed of a single layer.
Bones provide shape to the body.
Answer all
Bones are organ systems.
Bones provide shape to the body.
Which option shows the correct order of organization within multicellular organisms (from least complex to most complex)?(1 point)
Responses
cell → tissue → organ → organ system → organism
cell → tissue → organ → organ system → organism
tissue → organ system → organ → organism → cell
tissue → organ system → organ → organism → cell
organ → organ system → cell → organism → tissue
organ → organ system → cell → organism → tissue
cell → organ → organ system → tissue → organism
cell → tissue → organ → organ system → organism
What is systemic circulation?(1 point)
Responses
the path of blood as it moves from the heart throughout the body and back to the heart
the path of blood as it moves from the heart throughout the body and back to the heart
the path of blood between the heart and lungs
the path of blood between the heart and lungs
the path of blood as it moves from the head throughout the body and back to the head
the path of blood as it moves from the head throughout the body and back to the head
the path of blood between pharynx and trachea
the path of blood as it moves from the heart throughout the body and back to the heart
Answe all
the path of blood as it moves from the heart throughout the body and back to the heart
Which organ in the excretory system helps get filter waste?(1 point)
Responses
ureter
ureter
urethra
urethra
bladder
bladder
kidney
kidney
Question 7
In which two organs is food broken down?(1 point)
Responses
esophagus and small intestine
esophagus and small intestine
small intestine and large intestine
small intestine and large intestine
esophagus and stomach
esophagus and stomach
mouth and stomach Answer all
kidney helps filter waste.
Food is broken down in the esophagus and stomach.
Which component of nerve cells contains the nucleus? (1 point)
Responses
axon
axon
cell body
cell body
neuron
neuron
dendrite
The cell body of a nerve cell contains the nucleus.
A girl has her eyes shut and is standing inside a brightly lit room. What happens to her pupils when she opens her eyes? Why?(1 point)
Responses
Her pupils grow because the muscles contract.
Her pupils grow because the muscles contract.
Her pupils grow because the muscles relax.
Her pupils grow because the muscles relax.
Her pupils shrink because the muscles contract.
Her pupils shrink because the muscles contract.
Her pupils shrink because the muscles relax.
Her pupils shrink because the muscles relax.
Question 10
The human body has four types of tissues. What part of the eye uses muscle tissue for opening and closing movements?(1 point)
Responses
Cornea
Cornea
Iris
Iris
Sclera
Sclera
Retina
Retina
Question 11
How do polar bears maintain homeostasis in freezing cold weather? (1 point)
Responses
Their metabolism slows down to preserve heat.
Their metabolism slows down to preserve heat.
They hibernate in warm areas in order to heat their bodies.
They hibernate in warm areas in order to heat their bodies.
Their thick fur retains heat.
Their thick fur retains heat.
Their metabolism speeds up to produce heat.
Answer all
When the girl opens her eyes, her pupils shrink because the muscles contract. This is known as the pupillary light reflex, where bright light causes the muscles in the iris to contract, reducing the size of the pupil to protect the retina from excessive light.
The part of the eye that uses muscle tissue for opening and closing movements is the iris.
Polar bears maintain homeostasis in freezing cold weather by having a thick fur that retains heat and by having a metabolism that speeds up to produce heat.
The human body has four types of tissues. What part of the eye uses muscle tissue for opening and closing movements?(1 point)
Responses
Cornea
Cornea
Iris
Iris
Sclera
Sclera
Retina
The part of the eye that uses muscle tissue for opening and closing movements is the iris.
Which example shows an organism that cannot reach homeostasis through internal changes? (1 point)
Responses
A dog shivers when it is too cold.
A dog shivers when it is too cold.
Circulation decreases in a bird when it becomes too warm.
Circulation decreases in a bird when it becomes too warm.
A person gets a fever in response to a flu infection.
A person gets a fever in response to a flu infection.
A lizard is cold, and it moves to a sunny rock to warm up.
A lizard is cold, and it moves to a sunny rock to warm up.
Question 13
How is homeostasis achieved?(1 point)
Responses
Cells maintain internal stability.
Cells maintain internal stability.
Cells secrete stomach enzymes.
Cells secrete stomach enzymes.
Cells control involuntary movements.
Cells control involuntary movements.
Cells control voluntary movements.
Cells control voluntary movements.
Question 14
How are muscle cells and bone cells similar?(1 point)
Responses
Both gather information from inside and outside the body.
Both gather information from inside and outside the body.
Both make it possible for you to respond to your environment by moving.
Both make it possible for you to respond to your environment by moving.
Both control involuntary movements such as the beating of your heart.
Both control involuntary movements such as the beating of your heart.
Both release sweat when the temperature gets too warm. Answer all
An example that shows an organism that cannot reach homeostasis through internal changes is: A lizard is cold, and it moves to a sunny rock to warm up. In this case, the lizard relies on external environmental changes (moving to a sunny rock) to regulate its body temperature, rather than internal changes.
Homeostasis is achieved when cells maintain internal stability.
Muscle cells and bone cells are similar in that both make it possible for you to respond to your environment by moving.
What is the function of an organ system? (1 point)
Responses
to be a basic unit of organization with bodies
to be a basic unit of organization with bodies
to work together to do a specific job
to work together to do a specific job
to control movement in internal organs
to control movement in internal organs
to organize a group of similar cells
to organize a group of similar cells
Question 16
Which is most complex?(1 point)
Responses
cells
cells
organ system
organ system
organs
organs
tissues
tissues
Question 17
Which organ of the respiratory system is located inside the lungs?(1 point)
Responses
bronchioles
bronchioles
nasopharynx
nasopharynx
trachea
trachea
larynx
larynx
Question 18
Which organ in the excretory system filters blood?(1 point)
Responses
kidney
kidney
bladder
bladder
ureter
ureter
urethra
Answer all
The function of an organ system is to work together to do a specific job.
The most complex is the organ system because it is made up of multiple organs working together.
The organ of the respiratory system located inside the lungs is the bronchioles.
The kidney is the organ in the excretory system that filters blood.
What is the term for changes in the internal or external environment that cause a response?(1 point)
Responses
signals
signals
messages
messages
nerves
nerves
stimuli
stimuli
Question 20
How do signals from sensory neurons reach motor neurons?(1 point)
Responses
Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons.
Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons.
Signals from sensory neurons do not get sent to motor neurons.
Signals from sensory neurons do not get sent to motor neurons.
Motor neurons signal for the body to move the signal toward them.
Motor neurons signal for the body to move the signal toward them.
Signals move from dendrite to dendrite towards motor neurons. Answer all
The term for changes in the internal or external environment that cause a response is stimuli.
Signals from sensory neurons reach motor neurons through interneurons in the brain and spinal cord that connect the two.