Lungs expel waste from the body in the form of (1 point)
Responses
oxygen.
oxygen.
carbon dioxide.
carbon dioxide.
water.
water.
blood cells.
blood cells.
41 answers
carbon dioxide.
Which option is single celled? (1 point)
Responses
a bacterium
a bacterium
an artery
an artery
a human
a human
a kidney
a kidney
Responses
a bacterium
a bacterium
an artery
an artery
a human
a human
a kidney
a kidney
a bacterium
Which vessel carries oxygenated blood to the heart?(1 point)
Responses
vena cava
vena cava
pulmonary vein
pulmonary vein
aorta
aorta
pulmonary artery
pulmonary artery
Responses
vena cava
vena cava
pulmonary vein
pulmonary vein
aorta
aorta
pulmonary artery
pulmonary artery
pulmonary vein
A patient has a condition that makes it difficult to absorb nutrients from food. Which organ is most likely affected by the condition?(1 point)
Responses
large intestine
large intestine
small intestine
small intestine
stomach
stomach
esophagus
Responses
large intestine
large intestine
small intestine
small intestine
stomach
stomach
esophagus
small intestine
When you experience changes in light, sound, and temperature, which cells send signals toward the central nervous system? (1 point)
Responses
motor neurons
motor neurons
sensory neurons
sensory neurons
axons
axons
dendrites
Responses
motor neurons
motor neurons
sensory neurons
sensory neurons
axons
axons
dendrites
sensory neurons
Which sensory receptors would allow you to tell the difference between sweet and sour?(1 point)
Responses
thermoreceptors
thermoreceptors
mechanoreceptors
mechanoreceptors
chemoreceptors
chemoreceptors
photoreceptors
photoreceptors
Responses
thermoreceptors
thermoreceptors
mechanoreceptors
mechanoreceptors
chemoreceptors
chemoreceptors
photoreceptors
photoreceptors
chemoreceptors
A patient is unable to tell the difference between red and green. Which receptors are probably not functioning properly in the patient?(1 point)
Responses
Krause's corpuscles
Krause's corpuscles
Merkel's disks
Merkel's disks
rods
rods
cones
Responses
Krause's corpuscles
Krause's corpuscles
Merkel's disks
Merkel's disks
rods
rods
cones
cones
Most of the inside of the eye is known as the vitreous body. It is made primarily of vitrosin, a form of collagen. Collagen helps make up tendons, skin, and ligaments. This implies that, by volume, the eye is mostly made of what type of tissue?(1 point)
Responses
muscle
muscle
epithelial
epithelial
connective
connective
nerve
nerve
Responses
muscle
muscle
epithelial
epithelial
connective
connective
nerve
nerve
connective
Which statement correctly describes how we maintain homeostasis when we are tired? (1 point)
Responses
Our nervous system stops moving muscles.
Our nervous system stops moving muscles.
Our muscles send us a signal to stop moving.
Our muscles send us a signal to stop moving.
Our muscles weaken and move slowly.
Our muscles weaken and move slowly.
Our nervous system sends us a signal to rest.
Responses
Our nervous system stops moving muscles.
Our nervous system stops moving muscles.
Our muscles send us a signal to stop moving.
Our muscles send us a signal to stop moving.
Our muscles weaken and move slowly.
Our muscles weaken and move slowly.
Our nervous system sends us a signal to rest.
Our nervous system sends us a signal to rest.
Which body system is responsible for sending signals that your body is not in homeostasis? (1 point)
Responses
the circulatory system
the circulatory system
the respiratory system
the respiratory system
the nervous system
the nervous system
the muscular system
the muscular system
Responses
the circulatory system
the circulatory system
the respiratory system
the respiratory system
the nervous system
the nervous system
the muscular system
the muscular system
the nervous system
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 send signals in the body.
Question 3
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 → 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 are composed of a single layer.
Question 5
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 between pharynx and trachea
Question 6
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
mouth and stomach
Question 8
Which component of nerve cells contains the nucleus? (1 point)
Responses
axon
axon
cell body
cell body
neuron
neuron
dendrite
dendrite
Question 9
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.
Their metabolism speeds up to produce heat.
Question 12
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.
Both release sweat when the temperature gets too warm.
Question 15
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
urethra
Question 19
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.
Signals move from dendrite to dendrite towards motor neurons.
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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 send signals in the body.
Question 3
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 → 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 are composed of a single layer.
Question 5
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 between pharynx and trachea
Question 6
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
mouth and stomach
Question 8
Which component of nerve cells contains the nucleus? (1 point)
Responses
axon
axon
cell body
cell body
neuron
neuron
dendrite
dendrite
Question 9
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.
Their metabolism speeds up to produce heat.
Question 12
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.
Both release sweat when the temperature gets too warm.
Question 15
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
urethra
Question 19
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.
Signals move from dendrite to dendrite towards motor neurons.
Skip to navigation
Question 1: blood cells
Question 2: Both secrete enzymes.
Question 3: cell → tissue → organ → organ system → organism
Question 4: Bones provide shape to the body.
Question 5: the path of blood as it moves from the heart throughout the body and back to the heart
Question 6: kidney
Question 7: esophagus and stomach
Question 8: cell body
Question 9: Her pupils shrink because the muscles contract.
Question 10: Iris
Question 11: Their metabolism speeds up to produce heat.
Question 12: A lizard is cold, and it moves to a sunny rock to warm up.
Question 13: Cells maintain internal stability.
Question 14: Both make it possible for you to respond to your environment by moving.
Question 15: to work together to do a specific job
Question 16: organ system
Question 17: bronchioles
Question 18: kidney
Question 19: stimuli
Question 20: Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons.
Question 2: Both secrete enzymes.
Question 3: cell → tissue → organ → organ system → organism
Question 4: Bones provide shape to the body.
Question 5: the path of blood as it moves from the heart throughout the body and back to the heart
Question 6: kidney
Question 7: esophagus and stomach
Question 8: cell body
Question 9: Her pupils shrink because the muscles contract.
Question 10: Iris
Question 11: Their metabolism speeds up to produce heat.
Question 12: A lizard is cold, and it moves to a sunny rock to warm up.
Question 13: Cells maintain internal stability.
Question 14: Both make it possible for you to respond to your environment by moving.
Question 15: to work together to do a specific job
Question 16: organ system
Question 17: bronchioles
Question 18: kidney
Question 19: stimuli
Question 20: Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons.
Flies are scavengers and tend to break down dead organisms. Based on this information, what is a plant characteristic that would best attract flies?(1 point)
Responses
flowers that emit a sweet odor
flowers that emit a sweet odor
flowers that are light colored
flowers that are light colored
flowers that are brightly colored
flowers that are brightly colored
flowers that emit a rotten odor
Responses
flowers that emit a sweet odor
flowers that emit a sweet odor
flowers that are light colored
flowers that are light colored
flowers that are brightly colored
flowers that are brightly colored
flowers that emit a rotten odor
flowers that emit a rotten odor
Which of the following describes fertilization? (1 point)
Responses
the process of pollen moving from place to place
the process of pollen moving from place to place
the changes that occur in organisms over time
the changes that occur in organisms over time
when an animal is attracted to a flower
when an animal is attracted to a flower
when a sperm cell and egg cell come together
Responses
the process of pollen moving from place to place
the process of pollen moving from place to place
the changes that occur in organisms over time
the changes that occur in organisms over time
when an animal is attracted to a flower
when an animal is attracted to a flower
when a sperm cell and egg cell come together
when a sperm cell and egg cell come together
Specialization can be both limiting and beneficial. How would a plant species benefit from a pollinator that only visits the flowers of that plant species?(1 point)
Responses
less competition for pollinators within the species
less competition for pollinators within the species
decreased self-fertilization, allowing for greater genetic variation
decreased self-fertilization, allowing for greater genetic variation
less competition for pollinators with other species
less competition for pollinators with other species
the flowers always having a pollinator
Responses
less competition for pollinators within the species
less competition for pollinators within the species
decreased self-fertilization, allowing for greater genetic variation
decreased self-fertilization, allowing for greater genetic variation
less competition for pollinators with other species
less competition for pollinators with other species
the flowers always having a pollinator
less competition for pollinators with other species
Sometimes, plants will reward their pollinators with something that benefits them. What is an example of a plant attractant that is also a pollination reward?(1 point)
Responses
sweet odors
sweet odors
nectar
nectar
pollen
pollen
vibrant colors
Responses
sweet odors
sweet odors
nectar
nectar
pollen
pollen
vibrant colors
nectar
According to Laozi, what is the Dao?
(1 point)
Responses
the home of the heavenly spirits
the home of the heavenly spirits
respect for authority
respect for authority
the natural way of the universe
the natural way of the universe
reverence for ancestors
(1 point)
Responses
the home of the heavenly spirits
the home of the heavenly spirits
respect for authority
respect for authority
the natural way of the universe
the natural way of the universe
reverence for ancestors
the natural way of the universe
Which spirits were most important to the ancient Chinese?
(1 point)
Responses
spirits of one's ancestors
spirits of one's ancestors
evil spirits who controlled the crops
evil spirits who controlled the crops
spirits found in the natural world
spirits found in the natural world
spirits representing the Mandate of Heaven
(1 point)
Responses
spirits of one's ancestors
spirits of one's ancestors
evil spirits who controlled the crops
evil spirits who controlled the crops
spirits found in the natural world
spirits found in the natural world
spirits representing the Mandate of Heaven
spirits of one's ancestors
This painting shows life as it existed in China many years ago. The title of the painting is Carrying Loads of Rice to Feed His Parents. What Confucian idea does the image represent?
(1 point)
Responses
filial piety
filial piety
force of yin and yang
force of yin and yang
Legalism
Legalism
Mandate of Heaven
(1 point)
Responses
filial piety
filial piety
force of yin and yang
force of yin and yang
Legalism
Legalism
Mandate of Heaven
filial piety
Add: 1/2(x+4)+1/4(4x−2) . Answer should be in mixed number form.(1 point)
To simplify the expression 1/2(x+4) + 1/4(4x-2), we can distribute the fractions:
1/2(x) + 1/2(4) + 1/4(4x) - 1/4(2)
Simplifying further, we have:
x/2 + 2/2 + 4x/4 - 1/2
Combining like terms, we get:
x/2 + 1 + x - 1/2
Combining the x/2 and x terms, we have:
(1/2 + 1)x + (-1/2 + 1)
Simplifying, we get:
(3/2)x + 1/2
1/2(x) + 1/2(4) + 1/4(4x) - 1/4(2)
Simplifying further, we have:
x/2 + 2/2 + 4x/4 - 1/2
Combining like terms, we get:
x/2 + 1 + x - 1/2
Combining the x/2 and x terms, we have:
(1/2 + 1)x + (-1/2 + 1)
Simplifying, we get:
(3/2)x + 1/2
no
Apologies for the confusion. Let's simplify the expression once again:
1/2(x + 4) + 1/4(4x - 2)
First, distribute the fractions:
1/2 * x + 1/2 * 4 + 1/4 * 4x - 1/4 * 2
Simplifying:
x/2 + 2/2 + 4x/4 - 2/4
Combining like terms:
x/2 + 1 + x - 1/2
Combine the x/2 and x terms:
(1/2 + 1)x + (-1/2)
Simplifying further:
(3/2)x - 1/2
Therefore, the simplified expression is (3/2)x - 1/2.
1/2(x + 4) + 1/4(4x - 2)
First, distribute the fractions:
1/2 * x + 1/2 * 4 + 1/4 * 4x - 1/4 * 2
Simplifying:
x/2 + 2/2 + 4x/4 - 2/4
Combining like terms:
x/2 + 1 + x - 1/2
Combine the x/2 and x terms:
(1/2 + 1)x + (-1/2)
Simplifying further:
(3/2)x - 1/2
Therefore, the simplified expression is (3/2)x - 1/2.
Subtract: (3g−4)−2(3g+4)
To subtract (3g - 4) - 2(3g + 4), we need to distribute the -2 to the terms within the parentheses:
= (3g - 4) - 2 * 3g - 2 * 4
= 3g - 4 - 6g - 8
= -3g - 12
Therefore, the simplified form of (3g - 4) - 2(3g + 4) is -3g - 12.
= (3g - 4) - 2 * 3g - 2 * 4
= 3g - 4 - 6g - 8
= -3g - 12
Therefore, the simplified form of (3g - 4) - 2(3g + 4) is -3g - 12.