Answer:
I think the answer is hypothesis
Answer:
Yes
Explanation:
After a traumatic brain injury, it sometimes happens that the brain can repair itself, building new brain cells to replace damaged ones. But the repair doesn't happen quickly enough to allow recovery from degenerative conditions like motor neuron disease
Answer:4,000 J
Explanation:
--JUST DID ON APEX--
Answer:
Recycled, not recycled
Explanation:
In a soil ecosystem, matter is recycled and energy isn't recycled.
Matter is recycled through biogeochemical cycles. Matter has to be recycled because it can neither be created, nor destroyed, and as such, recycling is the only option left.
Energy isn't recycled because most of the energy gotten is used by organisms, as gotten from the plants already, and thus, when it gets to the food chain there isn't much left to be recycled.
Sequence
Snow and ice
Global temperatures rise
Sea level rises
Sources emit greenhouse gases
Sources emit greenhouse gases.
Global temperature rises.
Snow and ice.
Sea level rises.
Climate change is the critical alteration in the measures ofclimate, such as temperature, rainfall, or wind lasting for an drawn-outperiod. It can result from factors morerecently from human exercises through greenhouse gas emissions. The"greenhouse effect" changes the composition of the atmosphere and trapsheat increasing the global average temperatures. Snow and ice, which helpsregulate the Earth's surface temperature, melts and fills reservoirs and otherbodies of water, causing a rise in sea level.
b. Release of Ca2+ from the sarcoplasmic reticulum through channels is slow compared to the uptake of Ca2+ into the SR via ATP-dependent pumps, resulting in Ca2+ slowly trickling into the sarcomeres between closely spaced action potentials.
c. When a series of action potentials is closely spaced, there is not sufficient time for Ca2+ uptake into the sarcoplasmic reticulum between action potentials, and Ca2+ remains bound to troponin throughout the series.
d. Fewer Ca2+ ions are released from the sarcoplasmic reticulum as a result of several closely spaced action potentials than as a result of a single action potential.
Answer:
The correct answer is - option C.
Explanation:
A series of closely spaced action potentials cause the sustained muscle to contract which is only possible if in the sarcomere of muscles the has high Ca2+ during the complete contraction cycle.
If the Ca2+ level is lower due to the sufficient Ca2+ were taken up into the sarcoplasmic reticulum in the sarcomere below the range between each action potential, the muscle would relax because the myosin-binding sites will be covered by tropomyosin.
The Ca2+ channels in the SR are able to move the ions more rapidly than the Ca2+ pumps can move in SR so this will cause the concentration of calcium to always high which leads to the binding of tropomyosin and therefore, the myosin-binding sites would be exposed until the contraction is achieved.