Answer: The correct option is D.
The concentration of calcium in the myofibril must decrease.
Explanation:
This is because calcium makes myosin, actin and ATP to interact which actually lead to the contraction of muscle fibre.
Relaxation of muscle fibres occurs when the nerves stop stimulating. The result in the pumping of Calcium into the sarcoplasmic reticulum which then cause a break in the link that connect actin and myosin. Actin and myosin return to their unbound state leading to the relaxation of the muscle .
Elaborate: Describe two adaptations and explain how they help you survive.
Answer:
hope help you stay happy
Answer:
walking upright, allows us to be able to travel while carrying things with our hands. Sweating, helps us cool our body down so it doesnt overheat.
three major functions of leaf.
Answer:
Photosynthesis.
Transpiration.
Photosynthesis.
Explanation:
do DNA and RNA have the same phosphate group?
Answer: yes they do
Explanation: In a cell, a nucleotide about to be added to the end of a polynucleotide chain will bear a series of three phosphate groups. When the nucleotide joins the growing DNA or RNA chain, it loses two phosphate groups. So, in a chain of DNA or RNA, each nucleotide has just one phosphate group.
What is the platform of ADNOC called?
(Please dont comment files)
Answer: ADNOC Hosts Youth Circle at its Umm Lulu Offshore Platform as it Focuses on the Future - Abu Dhabi National Oil Company.
Explanation: Hope that was helpful! :D
¿A qué se debió el incremento en la cantidad de oxígeno en la atmósfera hace miles demillones de años?
Debido a que el hidrógeno molecular expulsado por los volcanes se difundió en el espacio, la Tierra ganó una atmósfera rica en oxígeno. Otra posibilidad es que el oxígeno se acumule debido a una disminución de gases – como el hidrógeno – que reaccionan con y por lo tanto "absorben" el oxígeno.
Explanation:
Answer: Some authors suggest the rise in oxygen about 2,470 – 2,450 million years ago was related to extensive volcanic activity,
Explanation:
7 grad science help
Answer:
the ghetto kid answer is B
What should be added to the diagram to better explain the water cycle?
A The sun to provide energy for evaporation
B Rocks to release thermal energy
Plants to provide oxygen in the atmosphere
D) Soil to trap water from runoff
Answer:
the answer is a
Explanation:
the evaporation plays a huge role in the water system
Where do organisms get the oxygen and sugar need to perform
respiration?
??
Explanation:
Almost all the oxygen you breathe comes from green plants. They produce oxygen during a process called photosynthesis. During photosynthesis green plants manufacture the sugar molecules fructose and glucose. Green plants use energy from sunlight to build sugar molecules from carbon dioxide and water
Which of the following best describes the Antarctic Circle as it is shown on the map?
Answer:
I don't know if it's right or not but I think its c
Explanation:
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A student studies a weather map and notices a front along a low pressure system heading towards El Paso. What type of front is this and what weather will El Paso experience?
Question 6 options:
Warm front with light precipitation followed by warmer temperatures.
Stationary front with steady rain and thunderstorms, followed by cold temperatures.
Cold front with heavy rain and thunderstorms, followed by cold temperatures.
Occluded front with heavy rain or snow, followed by warmer temperatures.
Answer:
cold front
Explanation:
i did the quiz
What problem is created when a cell
becomes larger than its DNA can control?
A. Information max
B. DNA overload
C. Nuclear outage
Answer:
B. DNA Overload I think. Let me know if i am right
Answer:B. DNA overload
Explanation:
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What is the ecological value of biodiversity?
Answer:
Life assistance in the environment Biodiversity supports functioning environments that include ozone, clean air and water, plant pollination, pest control, wastewater disposal, and a variety of other environmental services. Many outdoor activities, such as birdwatching, hiking, camping, and fishing, depend on our unique biodiversity.
Explanation:
How many control rooms does panorama have simultaneous access to across ADNOC Group?
(Please dont comment links nor files they dont help at all)
I need the answer for this question because i have homework for ADNOC
Why are people with type o blood considered universal donars?
Answer:
because they can donate blood to anyone
Explanation:
People with type O- blood are called universal donors because their donated red blood cells have no A, B or Rh antigens and can therefore be safely given to people of any blood group. ... Their plasma does not contain A or B antibodies and can be transfused safely to all blood types.
Drag each tile to the correct location.
Identify each process as a carbon source or a carbon sink.
Carbon sources are any natural or artificial production site of carbon and/or any chemical compounds composed of carbon, such as carbon dioxide and methane.
Carbon source: Combustion,Respiration.
A carbon sink absorbs carbon dioxide from the atmosphere.
Carbon sink: Photosyntheis,Ocean absorption,Fossilization.
Which one is carbon sink or carbon source?1. Photosyntheis: Forests are typically carbon sinks, places that absorb more carbon than they release. They continually take carbon out of the atmosphere through the process of photosynthesis.
2. Ocean absorption: Phytoplankton are the main reason the ocean is one of the biggest carbon sinks. These microscopic marine algae and bacteria play a impotant role in carbon cycle - absorbing carbon.
3. Fossilization: Absorb CO2.
4. Combustion: Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat and CO2 in environment.
5. Respiration: The respiratory system, with its conduction and respiratory zones, brings air from the environment to the lungs and facilitates gas exchange both in the lungs and within the cells and gives out CO2 in atmosphere.
Thus, we can conclude that
carbon sink: Photosyntheis,Ocean absorption,Fossilization.
carbon source:Combustion,Respiration.
You can learn more about carbon source and sink here:
https://brainly.com/question/12374693
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Explain how the flow of energy is linked to entropy and how the law of conservation of matter applies to the carbon cycle
The first law of thermodynamics is equivalent to the law of conservation of energy: energy cannot be created or destroyed; the total amount of energy in the Universe is fixed. Energy can be transformed from one form to another or transferred from one place to another but the total energy must remain unchanged.
why must both constricting and posionous snakes eat their prey alive?
Answer:
There is a very common misperception among people, even among many snake hobbyists, that snakes must have live prey.
Explanation:
This is not usually true. In the wild, snakes, like most other carnivores, will usually take any opportunity to get a free and easy meal, and will not pass up a freshly killed prey animal if they happen upon it. In fact, snakes have been known to eat a fair amount of carrion which has been dead for some time, and the stomach contents of wild snakes often contain prey that must have been in an advanced state of decomposition when it was eaten. Thus, although your snake may prefer to eat live prey, which it kills itself through constriction, this is not at all necessary for the health of the snake. In fact, it is best not to feed your captive snakes live prey at all.
Which type of specialized cells would be found in an animal’s nervous system?
Select one:
Cells that transport oxygen found in the blood.
Cells that secrete hormones to trigger cellular responses.
Cells that secrete enzymes to break down food.
Cells that can transmit signals around the body.
Answer:
Cells that transmits signals around the body.
Membrane bound-organelles have been an important component in the evolution of complex, multicellular organisms. Which of the following best summarizes the advantage of eukaryotic cells having internal membranes? a. Eukaryotic cells are able to reproduce faster because of the presence of organelles b. Some organelles, such as mitochondria and chloroplasts, are similar to prokaryotic cells in structure. c. Organelles isolate specific reactions, increasing metabolic efficiency. Compartmentalization leads to a higher mutation rate in DNA, which leads to more new species.
Answer:
A because eukaryotic cells reproduce way faster than prokaryotic cells
Explanation:
Genetic mutation which can lead to diversity between organisms can be caused by
Answer:
DNA
Explanation:
Mutations are changes to an organisms DNA that creates diversity within a population by introducing new alleles. Some mutations are harmful and are quickly eliminated from the population by natural selection harmful mutations prevent organisms from reaching sexual maturity and reproducing.
A new mutation arises in one person on the island of Kiribati (human population size 100,000). Assuming this particular mutation is total neutral, and assuming no gene flow, what is the probability that this mutation will eventually be lost due to genetic drift
Answer:
0.999999 ≈ 1
Explanation:
In a population ( N ) there is the presence of 2N alleles in the population also chance of fixation can be expressed as ; 1/ 2N
Therefore the probability that the mutation will be lost due to genetic drift
= 2N - 1 / 2N ---- ( 1 )
given that ; N = 100,000
back to equation 1
P ( losing mutation due to genetic drift ) = ((2*100,000) - 1 )) / ( 2* 100,000 )
= ( 200,000 - 1 ) / 200,000
= 0.999999 ≈ 1
What is it called when beings, animals, organisms, etc. are awake during both night and day?
Answer:
twilight
it is mixed of worda nouturnal and diurnal
Answer:
Twilight is the answer
Explanation:
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In a certain animal, a breed is known that always has a hairy tail; another breed is known that always has a naked tail. How would you determine which trait is dominant?
the dominant trade should be the hairy tail if its seen more often, naked tails are resesive and are seen less often, hope that helped
In a certain animal, it is possible to determine a dominant trait by crossing purebred lines and observing the proportion in offspring.
What are purebred lines?The purebred lines are genetic lineages of organisms that are homo-zygous for a given genetic/phenotypic trait.
It is possible to determine the dominance level of phenotypic features by crossing purebred lines.The proportion of the phenotypic traits in progeny will evidence the presence of dominace.In conclusion, in a certain animal, it is possible to determine a dominant trait by crossing purebred lines.
Learn more in:
https://brainly.com/question/21319938dominance
Living things have been organized into different categories to make it easier to identify them. Below is a diagram that represents part of the organizational structure of living things. What does the broadest part label X represent?
choices
1.Domain
2.Kingdom
3.Order
4.Species
Answer:
The answer is domain
Explanation:
hope this helps you out i had this question on my test i chose domain and got it right
how does skin help with homeostasis? include the terms stimulus and response
Answer:
The skin provides a protective layer for the inner organs, helps to regulate temperature, water balance, receives sensory stimuli, produces vitamins, etc.
Explanation:
The integumentary system can be defined as an organ system composed of different organs, i.e., skin, hair, exocrine glands, nails. The skin helps in homeostasis by providing a protective layer for the inner organs, contains immune cells involved in immune responses, regulates temperature, water balance, receives sensory stimuli, production of vitamins. The skin contains sensory receptors for different stimuli including touch, pain, pressure, and temperature (both heat and cold receptors). The inflammatory response (inflammation) occurs when harmful microorganisms penetrate the skin, thereby causing skin inflammation. The skin's immune cells include, among others, neutrophils (located in the reticular dermis), macrophages (papillary and reticular dermis), T lymphocytes (epidermis and papillary dermis), Langerhans cells (epidermis), etc.
Cell Cycle / Mitosis - Why do you look at the tip of a plant’s root for cells undergoing mitosis?
Answer:
Explanation:
Because each cell divides independently of the others, a root tip contains cells at different phases of the cell cycle.
hope this helps
Run a Cross between 2 parents with genotype AaBb x aaBb
What kinds of land uses are around
your school? Write down each type of land use.
Then describe how one of these land uses might
affect natural systems.
Answer:
The grass in the field How this effects is because its a comfertable place for alot of things to live
Explanation:
ASAP
Are identical twins mutations? And why
Answer: Research published on January 7 in the journal Nature Genetics shows that identical twins differ by an average of 5.2 genetic mutations. ... In such studies, scientists often assume that pairs of identical twins have identical DNA, so their differences can be explained by the environments they grew up in. That's because so-called identical twins pick up genetic mutations in the womb, as their cells weave new strands of DNA and then split into more and more cells.
Explanation: