Answer: The sarcomere is the functional unit of the muscle fiber. The sarcomere itself is bundled within the myofibril that runs the entire length of the muscle fiber and attaches to the sarcolemma at its end. As myofibrils contract, the entire muscle cell contracts.
Explanation:
Sound travels fastest in matter that has relatively ______ densities.
Answer:
low
Explanation:
.
How does the skeleton function to store minerals?
Answer:
calcium and phosphorous,
Explanation:
which can given up if the body requires the minerals for others functions
A plant which loses its leaves in winter is known as which of the following?
O Biennial
O Bulb
O Evergreen
O Deciduous
Answer:
Deciduous
Explanation:
Clayey soil is useful for growing plants because------
a) Water holding capacity in it is low
b) The percolation rate of water in it is high
c) It is rich in Humus
Answer:
C.) It is rich in humus and very fertile
fertilization in humans usually takes place in the
Answer: here you go
Explanation:
Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. If the fertilized egg successfully travels down the fallopian tube and implants in the uterus, an embryo starts growing.
Explain how carbon moves from one Earth System sphere to another
Answer: Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.
Science:Imagine that only half of the water vapor that the air can hold is actually in the air.
What is the relative humidity?
25%
50%
75%
100%
20 points for Algae are important to the earth's supply of:________
hydrogen
oxygen
nitrogen
plzzzzzzzz
Which large muscle is known as the "swimmer's muscle" because it pulls the arm downward and backward while rotating medially?
Answer:
c. Latissimus dorsi
Explanation: is correct
Suggest why the temperature of baby food must be controlled when the enzymes are added
Answer:
temperature plays an important role in biology as a way to regulate reactions.
Enzyme activity increases as temperature increases, and in turn increases the rate of the reaction. This also means activity decreases at colder temperatures.
Need help please
why might a person observing a conifer have difficulty identifying the gametophyte state
Answer:
Conifers produce seeds, they do not rely on water to unite the sperm and the egg.
Explanation:
Anyone knows the answer I need help assap:())))???
Answer: It is B
Explanation: Because remember invertebrates do not have a backbone.
Answer:
I think B
Explanation:
because they have backbone I think
large telescopes have revealed information about the motions of stars. they helped scientists realize that most stars and galaxies are accelerating away from one another. this led scientists to begin to develop the big bang theory. this new theory explained that the universe began as an enormous explosion outward from a single point
Answer:
c. using observations to spark an idea
Answer:
C
Explanation:
Just did the test
The follicle left after an egg is released during ovulation is called a(n)
O A. oocyte.
O B. tertiary follicle.
O c. corpus luteum.
OD. atresia.
Answer:C, corpus luteum
Explanation:
serotonin and norepinephrine levels in the the brain are altered by drugs like prozac and zoloft. these are known as
Serotonin aids in mood regulation including all other functions. While norepinephrine helps stimulate the brain and increase energy and awareness.
Their levels in the brain are altered by drugs like prozac and zoloft and they are known as antidepressants.
Antidepressants like prozac and zoloft are known to be effective in treating some disorders including mood disorders and bipolar disorders. They are able to do this through the regulation of the amount of these neurotransmitters (serotonin and norepinephrine) in the brain.Learn more: https://brainly.com/question/3563597
Which process occurs during the light-dependent reactions in photosynthesis?
Explanation:
thanks for the points man :) yes sir
Faris and his wife have normal skin color, but they both have a parent with albinism if
you know that albinism is a recessive trait. What is the probability that their first child
will have albinism?
Explanation:
If a man who's a carrier for albinism marries an albino what percentage of their children will be albinos, however if both parents carry the gene, there's a 1 in 4 chance that their child will have albinism and a 1 in 2 chance that their child will be a carrier. Carriers do not have albinism but can pass on the gene.
15. Brown eyes (B) are dominant over blue eyes (b).
Using this example, explain how a child can have a
trait that neither parent expresses physically. Use a
Punnett Square to validate your answer.
Both parents have Bb Bb
B b
B BB Bb
b Bb bb
The child got little b, little b
Match the component of the cerebral nuclei with its function.
a. Involved in consciousness and integration of information from multiple senses (Click to select)
b. Stimulates muscles to produce the pattern and rhythm of walking (Click to select)
c. Excites and inhibits the thalamus to adjust muscle tone (Click to select)
d. Involved in emotion, behavioral activity, and mood (Click to select)
e. Controls muscular movement at the subconscious level
1- claustrum
2- caudate nucleus
3- globus pallidus
4- amygdaloid body
5- putamen
The components of cerebral nuclei with its correct functions are listed below.
Claustrum: This is involved in consciousness and integration of information from multiple senses. That is option A.Caudate nucleus: This stimulates muscles to produce the pattern and rhythm of walking. That is option B.Globus pallidus: This excites and inhibits the thalamus to adjust muscle tone. That is option C.Amygdaloid body: This is Involved in emotion, behavioural activity, and mood. That is option D.Putamen : This controls muscular movement at the subconscious level. That is option E.The cerebral nuclei makes up the three components of the cerebrum that plays an important role in neural systems controlling somatic movement and motivation.
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What are the 50 states
Answer:this are the 50 states in the america
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
Florida
Georgia
Hawaii
Idaho
IllinoisIndiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
MontanaNebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
PennsylvaniaRhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
Explanation:brainliest aswer or bagde please
what process is shown below?
Drag the correct reactants and products to each box to complete the equations.
Photosynthesis
GO2
Oxygen
1
db
Respiration
H20
G6H1206
ATP
Les Demy
H20
Oxygen
1
GO2
Energy
1:
GHOS
Answer:
Photosynthesis = Carbon Dioxide + Water -> Oxygen + Glucose
6CO2 + 6H2O -> 6O2 + C6H12O6
Respiration = Glucose + Oxygen -> Water + Carbon Dioxide
C6H12O6 + 6O2 -> 6H2O + 6CO2
HELP HELP ME ME
All of the following can result in muscle fatigue except
C. excess Ca++
B. Excess K+ ions
D. hyperpolarization
A. build up of lactic acid
Answer:
D. HyperpolarizationHope it helped
Read the statements below. Select the events that are triumphs of science.
Science is known to have made regular people decide to work hard and dedicate themselves to solving a problem. The events that are triumphs of science are;
Regulating the cell cycle to fight cancer. Producing children with higher intelligence. Development of vaccines against disease. Transforming bacteria to produce biofuels. Genetically modifying crops to resist pests.There have been the footprint of Science behind making Children smarter in music, chess, computer etc.
There are now cheaper and cleaner biofuels that is produced through genetic engineering to alter how some organisms process sugar.
Cell cycle checkpoints are very important to halt cell cycle increase in response to DNA damage, making time therefore for DNA repair.
See full question below
Read the statements below. Select the events that are triumphs of science. Regulating the cell cycle to fight cancer.
Producing children with higher intelligence. Development of vaccines against disease. Transforming bacteria to produce biofuels. Genetically modifying crops to resist pests. Understanding how molecules affect metabolism to fight obesityLearn more from
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Please help me
What is the thickest layer of the earth?
the crust?
the mantle?
the outer core?
The inner core?
ty!
Answer:
core
The core is the thickest layer of the Earth, and the crust is relatively thin, compared to the other layers.
Explanation:
Muscles that move the wrist and hand originate on which bone(s)?
Answer:
a. Humerus
Explanation: is correct
Muscles that move the wrist and hand originate on bone carpals. The correct option is d.
What are carpals?The carpal bones are wrist bones that connect the distal portions of the forearm's radial and ulnar bones to the bases of the five metacarpal bones of the hand. There are eight carpal bones that are divided into two rows: proximal and distal.
The wrist is made up of eight tiny bones (carpal bones) and two large bones in the forearm — the radius and ulna. Each finger has one hand bone (metacarpal) and three finger bones (phalanges), but each thumb has one metacarpal bone and two phalanges.
The carpals are eight bones present in the wrist of the hand. It helps in moving the wrist, and it also attaches the hand to the wrist.
Therefore, the correct option is d, carpals.
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Which of the following muscles gives Reed his defined six-pack?
Answer:
a. Rectus abdominis
Explanation: is correct
which activities of the body are controlled by the autonomic nervous system?
The autonomic nervous system controls internal body processes such as the following:
Blood pressure.
Heart and breathing rates.
Body temperature.
Digestion.
Metabolism (thus affecting body weight)
The balance of water. ...
The production of body fluids (saliva, sweat, and tears)
Urination.
Cells and the organisms they make up reproduce through cell division. Some
organisms reproduce through mitosis, while others reproduce through meiosis and
fertilization. What advantage does meiosis give to organisms that reproduce sexually?
a
Meiosis ensures that offspring inherit genes from their parents.
b
Meiosis ensures that offspring will not inherit any genetic disorders.
c
Meiosis ensures that offspring are genetically different from their parents.
d
Meiosis ensures that offspring will have identical phenotypes to their parents.
The advantage meiosis give to organisms that reproduce sexually is meiosis ensures that offspring are genetically different from their parents.
What do you mean by meiosis?In sexually reproducing organisms, meiosis is a unique type of cell division that results in the production of gametes, such as sperm or egg cells.
Meiosis is a kind of cell division in physically repeating life forms that diminishes the quantity of chromosomes in gametes (the sex cells, or egg and sperm).
Gametes, or sex cells, are the end result of meiosis. Each of the four haploid daughter cells produced during meiosis has half the number of chromosomes as the parent cell.
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Select the correct answer.
The images show two different types of Galapagos tortoises that scientists believe descended from the same species. The first type (left) are found on islands that have high vegetation and few grasses. The second type (right) are found on an island that has large amounts of grasses and low-lying shrubs. What explains the type of turtle found on the islands with high vegetation?
A.
The environment triggered a gene mutation in neck length in order to help the turtle survive.
B.
Mutations are random, so it is by chance that turtles with longer necks live on these islands.
C.
Turtles with genes for long necks had a better chance of surviving to reach reproductive age.
D.
Turtles with short necks completely lacked adaptations for finding food, so they died off.
Answer:
c
Explanation:
not sure
