Which cells carry nutrients from food to the rest of the cells in the body?(1 point)
Responses
nerve cells
nerve cells
muscle cells
muscle cells
stomach cells
stomach cells
blood cells
29 answers
blood cells
How are blood cells and stomach cells similar?(1 point)
Responses
Both help maintain homeostasis.
Both help maintain homeostasis.
Both help with digestion.
Both help with digestion.
Both send signals in the body.
Both send signals in the body.
Both secrete enzymes.
Responses
Both help maintain homeostasis.
Both help maintain homeostasis.
Both help with digestion.
Both help with digestion.
Both send signals in the body.
Both send signals in the body.
Both secrete enzymes.
Both help with digestion.
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
cell → organ → organ system → tissue → organism
cell → organ → organ system → tissue → organism
organ → organ system → cell → organism → tissue
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
cell → organ → organ system → tissue → organism
cell → organ → organ system → tissue → organism
organ → organ system → cell → organism → tissue
cell → tissue → organ → organ system → organism
Which statement is true?(1 point)
Responses
Bones are composed of a single layer.
Bones are composed of a single layer.
Bones are organ systems.
Bones are organ systems.
Bones help the heart pump blood.
Bones help the heart pump blood.
Bones provide shape to the body.
Responses
Bones are composed of a single layer.
Bones are composed of a single layer.
Bones are organ systems.
Bones are organ systems.
Bones help the heart pump blood.
Bones help the heart pump blood.
Bones provide shape to the body.
Bones provide shape to the body.
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 pharynx and trachea
the path of blood between pharynx and trachea
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
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 pharynx and trachea
the path of blood between pharynx and trachea
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 heart throughout the body and back to the heart
Which organ in the excretory system has a function similar to that of the esophagus in the digestive system?(1 point)
Responses
bladder
bladder
ureter
ureter
kidney
kidney
urethra
Responses
bladder
bladder
ureter
ureter
kidney
kidney
urethra
ureter
In which two organs is food broken down?(1 point)
Responses
esophagus and stomach
esophagus and stomach
mouth and stomach
mouth and stomach
small intestine and large intestine
small intestine and large intestine
esophagus and small intestine
Responses
esophagus and stomach
esophagus and stomach
mouth and stomach
mouth and stomach
small intestine and large intestine
small intestine and large intestine
esophagus and small intestine
mouth and stomach
When you get home, you smell cookies baking. You respond by walking toward the kitchen. Many signals move through your nervous system in this process. Which component is involved first? (1 point)
Responses
dendrites in your sensory neurons
dendrites in your sensory neurons
axons in your motor neurons
axons in your motor neurons
dendrites in your motor neurons
dendrites in your motor neurons
axons in your sensory neurons
Responses
dendrites in your sensory neurons
dendrites in your sensory neurons
axons in your motor neurons
axons in your motor neurons
dendrites in your motor neurons
dendrites in your motor neurons
axons in your sensory neurons
dendrites in your sensory neurons
Which component of nerve cells contains the nucleus? (1 point)
Responses
dendrite
dendrite
cell body
cell body
axon
axon
neuron
Responses
dendrite
dendrite
cell body
cell body
axon
axon
neuron
cell body
Which of the following observations could you make based on stimuli to your thermoreceptors?(1 point)
Responses
The ice cream is sweet.
The ice cream is sweet.
The ice cream is white.
The ice cream is white.
The ice cream is heavy.
The ice cream is heavy.
The ice cream is cold.
The ice cream is cold.
Responses
The ice cream is sweet.
The ice cream is sweet.
The ice cream is white.
The ice cream is white.
The ice cream is heavy.
The ice cream is heavy.
The ice cream is cold.
The ice cream is cold.
The ice cream is cold.
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 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.
Her pupils grow because the muscles contract.
Her pupils grow because the muscles contract.
Her pupils grow because the muscles relax.
Responses
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.
Her pupils grow because the muscles contract.
Her pupils grow because the muscles contract.
Her pupils grow because the muscles relax.
Her pupils shrink because the muscles contract.
The human body has four types of tissues. What part of the eye uses muscle tissue for opening and closing movements?(1 point)
Responses
Retina
Retina
Iris
Iris
Cornea
Cornea
Sclera
Responses
Retina
Retina
Iris
Iris
Cornea
Cornea
Sclera
Iris
How do polar bears maintain homeostasis in freezing cold weather? (1 point)
Responses
Their metabolism speeds up to produce heat.
Their metabolism speeds up to produce heat.
Their thick fur retains heat.
Their thick fur retains heat.
Their metabolism slows down to preserve heat.
Their metabolism slows down to preserve heat.
Their thick skin insulates the internal organs against the cold.
Responses
Their metabolism speeds up to produce heat.
Their metabolism speeds up to produce heat.
Their thick fur retains heat.
Their thick fur retains heat.
Their metabolism slows down to preserve heat.
Their metabolism slows down to preserve heat.
Their thick skin insulates the internal organs against the cold.
Their thick fur retains heat.
Which example shows an organism that cannot reach homeostasis through internal changes? (1 point)
Responses
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.
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.
Responses
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.
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.
Circulation decreases in a bird when it becomes too warm.
An eye doctor shines a bright light into a patient's eye. In one to two sentences, explain how the patient's brain perceives the bright light.
When the bright light enters the patient's eye, it stimulates the photoreceptor cells in the retina, which then transmit electrical signals to the brain via the optic nerve. The brain interprets these signals as the perception of brightness or light.