How are muscle cells and bone cells similar?
Muscle cells and bone cells are both types of specialized cells that are vital components of the human body. Here are a few ways in which these cells are similar:
1. Origin: Both muscle and bone cells are derived from precursor cells during organogenesis. Muscle cells originate from mesodermal cells, while bone cells originate from mesenchymal cells.
2. Specialization: Both cells have specific functions within the body. Muscle cells (muscle fibers or myocytes) play a crucial role in generating force and movement, allowing for body and organ movement. Bone cells (osteocytes, osteoblasts, and osteoclasts) are responsible for bone formation, remodeling, and maintenance of bone structure and integrity.
3. Structure: Both muscle cells and bone cells have a distinct structural organization. Muscle cells consist of elongated fibers that are rich in contractile proteins, such as actin and myosin. Bone cells are arranged in a matrix composed mainly of collagen fibers, which are responsible for the mechanical strength of the bone.
4. Tissue formation: Both muscle cells and bone cells work together to form tissues within the body. Muscle cells combine to form muscle tissue, which can be further organized into various types of muscle (skeletal, cardiac, or smooth). Bone cells combine with collagen fibers to form bone tissue, which provides support, protection, and facilitates body movements.
5. Response to exercise: Both muscle and bone cells adapt to exercises or physical activities. Regular exercise or weightlifting can lead to an increase in muscle size and strength. Similarly, bone cells respond to a mechanical load by increasing bone density and mineral content, resulting in stronger bones.
While muscle cells and bone cells share some similarities, it is important to note that they are distinct cell types with different functions and structures.
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 gather information from inside and outside the body.
Both make it possible for you to respond to your environment by moving.
Both control involuntary movements such as the beating of your heart.
choose one
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 work together to do a specific job.
Which is most complex?(1 point)
Responses
cells
cells
organ system
organ system
organs
organs
tissues
The most complex would be the organ system.
Which organ of the respiratory system is located inside the lungs?(1 point)
Responses
bronchioles
bronchioles
nasopharynx
nasopharynx
trachea
trachea
larynx
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.
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
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.
Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons.
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 how much money Jaden will earn for 4 lawn-mowing jobs and 6 pulling-weeds jobs, we can substitute the given values of l=4 and w=6 into the expression 25l+20w:
25(4) + 20(6)
= 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 given value of s=10 into the formula 6s^2:
Surface Area = 6s^2
Surface Area = 6(10^2)
Surface Area = 6(100)
Surface Area = 600 cm^2
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 how much Alicia will earn for a job that takes 3 hours, we can substitute the given value of h=3 into the expression 65h+100:
65(3) + 100
= 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 diver is above the ocean in 2 seconds, we can substitute the given value of t=2 into the formula 75 - 16t^2:
Height = 75 - 16t^2
Height = 75 - 16(2^2)
Height = 75 - 16(4)
Height = 75 - 64
Height = 11
Therefore, the 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 of 4 yards and a width of 3 yards, we can substitute the given values of l=4 and w=3 into the expression 1.50(2l+2w):
Cost = 1.50(2l+2w)
Cost = 1.50(2(4) + 2(3))
Cost = 1.50(8 + 6)
Cost = 1.50(14)
Cost = 21
Therefore, the cost for a garden with a length of 4 yards and a width of 3 yards would be $21.
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. (1 point)
Responses
$87.50
$87.50
$43.75
$43.75
$62.50
$62.50
$450.00
To find out how much it will cost Mr. Imani to purchase 10 packs of paper and 30 notebooks, we can substitute the given values of p = 10 and n = 30 into the expression 1.25p + 2.50n:
Cost = 1.25p + 2.50n
Cost = 1.25(10) + 2.50(30)
Cost = 12.50 + 75.00
Cost = 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.(1 point)
Responses
48 cubic centimeters
48 cubic centimeters
96 cubic centimeters
96 cubic centimeters
576 cubic centimeters
576 cubic centimeters
144 cubic centimeters
To find the volume of a square prism with a side length of 4 units and a height of 6 units, we can substitute the given values of s=4 and h=6 into the formula s^2h:
Volume = s^2h
Volume = 4^2 * 6
Volume = 16 * 6
Volume = 96 cubic units
Therefore, the volume of the square prism 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.(1 point)
Responses
$3,700
$3,700
$2,612
$2,612
$31,200
$31,200
$2,600
To find how much Ms. Tanaka will earn for selling 12 televisions this month, we can substitute the given value of t=12 into the expression 2,500 + 100t:
Earnings = 2,500 + 100t
Earnings = 2,500 + 100(12)
Earnings = 2,500 + 1,200
Earnings = 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.(1 point)
Responses
9,940 square inches
9,940 square inches
230 square inches
230 square inches
580 square inches
580 square inches
34,790 square inches
To find the space Robert will have left for his presentation after using squares with 7-inch sides, we can substitute the given value of s=7 into the expression 720 - 10s^2:
Space remaining = 720 - 10s^2
Space remaining = 720 - 10(7^2)
Space remaining = 720 - 10(49)
Space remaining = 720 - 490
Space remaining = 230 square inches
Therefore, Robert will have 230 square inches of space left for his presentation after using the squares with 7-inch sides on the poster board.
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.(1 point)
Responses
$39
$39
$98
$98
$16
$16
$63
To find the cost for a garden that has a length of 5 yards and a width of 2 yards, we can substitute the given values of l=5 and w=2 into the expression 7(l + 2w):
Cost = 7(l + 2w)
Cost = 7(5 + 2(2))
Cost = 7(5 + 4)
Cost = 7(9)
Cost = 63
Therefore, the cost for a garden with a length of 5 yards and a width of 2 yards would be $63.
Simplify 8a − 2a
To simplify the expression 8a - 2a, we can combine like terms:
8a - 2a = (8 - 2)a = 6a
Therefore, 8a - 2a simplifies to 6a.
Simplify 12e − 5f − 7e +3f.
To simplify the expression 12e - 5f - 7e + 3f, we can combine like terms:
12e - 7e - 5f + 3f = (12e - 7e) + (-5f + 3f) = 5e - 2f
Therefore, 12e - 5f - 7e + 3f simplifies to 5e - 2f.
Simplify 9x + 3y − 6 − 5x + 4y −3
To simplify the expression 9x + 3y - 6 - 5x + 4y - 3, we can combine like terms:
(9x - 5x) + (3y + 4y) - (6 + 3) = 4x + 7y - 9
Therefore, 9x + 3y - 6 - 5x + 4y - 3 simplifies to 4x + 7y - 9.
Simplify 9/11z − 4/11z
To simplify the expression 9/11z - 4/11z, we can combine the like terms:
9/11z - 4/11z = (9z - 4z)/11z = 5z/11z
However, to further simplify, we can cancel out the common factor of z:
5z/11z = 5/11
Therefore, 9/11z - 4/11z simplifies to 5/11.
try again
Apologies for the incorrect response earlier. Let's simplify the expression correctly.
To simplify 9/11z - 4/11z, we can combine the like terms:
9/11z - 4/11z = (9 - 4)/11z = 5/11z
Therefore, 9/11z - 4/11z simplifies to 5/11z.
Simplify 3/10x + 1/6y + 3/10x + 3/6y. Be sure to reduce any fractions to the lowest terms.
To simplify the expression 3/10x + 1/6y + 3/10x + 3/6y, we can combine the like terms:
(3/10x + 3/10x) + (1/6y + 3/6y) = 6/10x + 4/6y
Now, let's simplify the fractions and put them in the lowest terms.
The fraction 6/10 can be simplified by dividing both the numerator and the denominator by their greatest common divisor, which is 2.
6/10 = (6 ÷ 2) / (10 ÷ 2) = 3/5
The fraction 4/6 can also be simplified by dividing both the numerator and the denominator by their greatest common divisor, which is 2.
4/6 = (4 ÷ 2) / (6 ÷ 2) = 2/3
Therefore, after simplifying, the expression 3/10x + 1/6y + 3/10x + 3/6y simplifies to 3/5x + 2/3y.