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
The correct order of organization within multicellular organisms is:
cell → tissue → organ → organ system → organism.
So the correct option is:
cell → tissue → organ → organ system → organism
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.
The statement "Bones provide shape to the body" is true.
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 correct definition of systemic circulation is "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
The organ in the excretory system that helps filter waste is the kidney.
Which component of nerve cells contains the nucleus? (1 point)
Responses
axon
axon
cell body
cell body
neuron
neuron
dendrite
The component of nerve cells that contains the nucleus is the cell body.
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 contract.
When the girl opens her eyes in a brightly lit room, the muscles in her iris contract, causing the pupils to constrict or shrink. This is a reflex response to protect the eyes from excessive light by reducing the amount of light entering the eye.
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. The iris contains smooth muscle fibers that control the size of the pupil, allowing it to dilate or constrict in response to different lighting conditions.
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
The 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 is relying on an external stimulus (the sun) to regulate its body temperature, rather than internal mechanisms.
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 movement
Homeostasis is achieved through cells maintaining internal stability.
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
The correct statement is: "Both make it possible for you to respond to your environment by moving."
Both muscle cells and bone cells contribute to the body's ability to move. Muscle cells, specifically skeletal muscle cells, contract and relax to produce movement, while bone cells provide structural support and protection, allowing the muscles to attach and exert force for movement.
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
The function of an organ system is "to work together to do a specific job."
Organ systems in the human body are composed of different organs working together to perform specific functions that are necessary for survival and overall body function. Each organ system has a specific role or job, and together they collaborate to maintain homeostasis and carry out vital processes such as respiration, digestion, circulation, and movement.
Which organ of the respiratory system is located inside the lungs?(1 point)
Responses
bronchioles
bronchioles
nasopharynx
nasopharynx
trachea
trachea
larynx
The organ of the respiratory system that is located inside the lungs is the bronchioles.
Which organ in the excretory system filters blood?(1 point)
Responses
kidney
kidney
bladder
bladder
ureter
ureter
urethra
The organ in the excretory system that filters blood is the kidney.
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
The term for changes in the internal or external environment that cause a response is "stimuli".
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 from sensory neurons reach motor neurons through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons. These interneurons serve as a pathway for the signals to travel, allowing for the integration and coordination of sensory information and motor responses.
Jaden has a part-time job working for a landscaping company. He earns $25 for each lawn-mowing job, l, and $20 for each pulling-weeds job, w. This can be modeled by 25l+20w. Evaluate for l=4 and w=6 to find how much money Jaden will earn for 4 lawn-mowing jobs and 6 pulling-weeds jobs
To find out how much money Jaden will earn for 4 lawn-mowing jobs (l) and 6 pulling-weeds jobs (w), we can substitute the given values into the expression 25l + 20w.
So, substituting l=4 and w=6:
25(4) + 20(6)
Calculating this expression:
= 100 + 120
= 220
Therefore, Jaden will earn $220 for 4 lawn-mowing jobs and 6 pulling-weeds jobs.
The formula for finding the surface area of a cube is 6s2, where s is the length of each side of the square. Evaluate for s=10 to find the number of square centimeters (cm2) for the surface area of a cube with a side length of 10 cm.
To find the surface area of a cube with a side length of 10 cm, we can substitute the value of s=10 into the formula 6s^2.
So, substituting s=10:
6(10)^2
Calculating this expression:
= 6(100)
= 600
Therefore, the surface area of a cube with a side length of 10 cm is 600 square centimeters (cm^2).
Alicia works for Thomas Edison Electrical Company. She earns $100 for going to a customer’s house and $65 per hour, h, for the job. This is modeled by 65h+100. Evaluate for h=3 to find how much Alicia will earn for a job that takes 3 hours.
To find out how much Alicia will earn for a job that takes 3 hours (h), we can substitute the given value into the expression 65h + 100.
So, substituting h=3:
65(3) + 100
Calculating this expression:
= 195 + 100
= 295
Therefore, Alicia will earn $295 for a job that takes 3 hours.
A competitive cliff-diver jumps from a height of 75 feet. Find the number of feet the diver is above the ocean in 2 seconds. Evaluate for t=2 by using the formula 75−16t2, where t is time in seconds.
To find the number of feet the cliff-diver is above the ocean in 2 seconds (t), we can substitute the given value into the formula 75 - 16t^2.
So, substituting t=2:
75 - 16(2)^2
Calculating this expression:
= 75 - 16(4)
= 75 - 64
= 11
Therefore, the cliff-diver is 11 feet above the ocean in 2 seconds.
Gabrielle wants to put a border around her garden. It costs $1.50 per yard for the materials. Use 1.50(2l+2w), where l is the length and w is the width of her garden, to find the cost for a garden that has a length of 4 yards and a width of 3 yards.
To find the cost for a garden that has a length (l) of 4 yards and a width (w) of 3 yards, we can substitute the given values into the expression 1.50(2l + 2w).
So, substituting l=4 and w=3:
1.50(2(4) + 2(3))
Calculating this expression:
= 1.50(8 + 6)
= 1.50(14)
= 21
Therefore, the cost for a garden with a length of 4 yards and a width of 3 yards would be $21.
Question
Mr. Imani wants to purchase paper and notebooks for his classroom. At Dollar Discount he can buy packs of paper, p, for $1.25 each and notebooks, n, for $2.50 each. This is modeled by 1.25p + 2.50n. Evaluate for p = 10 and n=30 to find how much it will cost Mr. Imani to purchase 10 packs of paper and 30 notebooks.
To find out how much it will cost Mr. Imani to purchase 10 packs of paper (p) and 30 notebooks (n), we can substitute the given values into the expression 1.25p + 2.50n.
So, substituting p=10 and n=30:
1.25(10) + 2.50(30)
Calculating this expression:
= 12.50 + 75
= 87.50
Therefore, it will cost Mr. Imani $87.50 to purchase 10 packs of paper and 30 notebooks.
The formula for finding the volume of a square prism is s2h, where s is the length of each side of the square base and h is the height of the prism. Evaluate to find the volume given values of s = 4 and h = 6.
To find the volume of a square prism with a side length of 4 (s) and a height of 6 (h), we can substitute the given values into the formula s^2h.
So, substituting s=4 and h=6:
(4)^2 * 6
Calculating this expression:
= 16 * 6
= 96
Therefore, the volume of the square prism with a side length of 4 and a height of 6 is 96 cubic units.
Each month Ms. Tanaka is paid a base salary of $2,500 in addition to $100 for each television that she sells. This is modeled by 2,500 + 100t, where t represents the number of televisions. Evaluate for t = 12 to find how much Ms. Tanaka will earn for selling 12 televisions this month.
To find out how much Ms. Tanaka will earn for selling 12 televisions (t) this month, we can substitute the given value into the expression 2,500 + 100t.
So, substituting t=12:
2,500 + 100(12)
Calculating this expression:
= 2,500 + 1,200
= 3,700
Therefore, Ms. Tanaka will earn $3,700 for selling 12 televisions this month.
Robert is preparing a poster-board presentation. He wants to make a decorative pattern with 10 squares to fill part of the poster. The area of the poster board is 720 square inches. To find how much space Robert will have left for his presentation if he uses squares with 7-inch sides, evaluate 720 − 10s2 when s = 7.
To find out how much space Robert will have left for his presentation, we need to subtract the total area of the 10 squares (10s^2) from the total area of the poster board (720 square inches).
Given that s (the side length of the squares) is 7 inches, we can substitute s=7 into the expression 720 - 10s^2.
So, substituting s=7:
720 - 10(7^2)
Calculating this expression:
720 - 10(49)
720 - 490
= 230
Therefore, Robert will have 230 square inches of space left for his presentation if he uses squares with 7-inch sides.
Mr. Rodriguez has a vegetable garden that borders his house. He wants to put a fence around it. It costs $7 per yard for the materials. Evaluate 7(l + 2w), where l is the length and w is the width of his garden, to find the cost for a garden that has a length of 5 yards and a width of 2 yards.
To find the cost for a garden that has a length (l) of 5 yards and a width (w) of 2 yards, we can substitute the given values into the expression 7(l + 2w).
So, substituting l = 5 and w = 2:
7(5 + 2(2))
Calculating this expression:
= 7(5 + 4)
= 7(9)
= 63
Therefore, the cost for a garden with a length of 5 yards and a width of 2 yards would be $63.
Which statement best describes a command economy?
(1 point)
Responses
Individuals make most economic choices.
Individuals make most economic choices.
Market forces decide most economic questions.
Market forces decide most economic questions.
The government controls most economic activity.
The government controls most economic activity.
Businesses determine most economic outcomes.
The statement that best describes a command economy is: "The government controls most economic activity."
In a command economy, the government has the power to make decisions and control economic activities such as production, distribution, and pricing. The government sets goals and makes decisions on what goods and services will be produced and how they will be allocated. Individual choices and market forces have limited influence in a command economy compared to government directives and planning.
Confucianism and Daoism developed in China while
Choose
emerged in Japan.
The answer is Buddhism.
Simplify 8a − 2a
To simplify 8a - 2a, we can combine like terms.
8a - 2a simplifies to (8 - 2)a, which further simplifies to 6a.
Therefore, 8a - 2a simplifies to 6a.
Simplify 12e − 5f − 7e +3f.
To simplify 12e - 5f - 7e + 3f, we can combine like terms.
12e - 7e simplifies to (12 - 7)e, which further simplifies to 5e.
-5f + 3f simplifies to (-5 + 3)f, which further simplifies to -2f.
Putting it all together, we have:
12e - 5f - 7e + 3f = (5e - 2f)
Therefore, 12e - 5f - 7e + 3f simplifies to 5e - 2f.
Simplify 9x + 3y − 6 − 5x + 4y −3.
To simplify 9x + 3y - 6 - 5x + 4y - 3, we
. Which sentence demonstrates correct subject-verb agreement?(1 point)
Responses
Most of the teachers attends the pep rally.
Most of the teachers attends the pep rally.
Most of the students attend the pep rally.
Most of the students attend the pep rally.
Most of the teams attends the pep rally.
Most of the teams attends the pep rally.
Most of the school attend the pep rally.
Most of the school attend the pep rally.