Answer:
5- action potential 6- receptors 7- calcium ions 8- sarcolemma
Explanation:
This description illustrates the pathway of a action potential traveling along a neuro-muscular junction. this functions as a chemical synapse between a motor neuron and a muscle fibre. It allow the motor neuron to transmit a signal/action potential to the muscle fiber, causing muscle contraction.
Answer:
50%
Explanation:
A pedigree chart is a chart that defines the incident and the presence of a specific organism and its ancestor from generation one to the another generation like humans, racehorses, etc
Here in the given situation, it is mentioned that the a female which is with an X-linked associated with a normal male
So based on the above information, the possibilities should be 50%
Plants that have increased levels of mutations
that can either be in their
germ-line or somatic tissues is what the plant breeder should look for because if
plants re defective in DNA <span>repair they should have
higher rates of mutation .</span>
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Complete question:
You hang a swing from a live tree branch that is roughly parallel to the ground. What will likely happen over time as the tree grows? Check All That Apply
- The swing will move farther away from the tree trunk.
- The swing will move up. away from the ground.
- The swing will remain in its original position.
- The swing's ropes will become embedded in the branch.
Answer:
The swing's ropes will become embedded in the branch.
Explanation:
The trunk or branch strangulation sadly occurs very often. When people tie a young tree with different materials, such as a rope, or a cable, or a wire, and leave it there, the leash will eventually strangulate the tree.
Strangulation occurs because the tree keeps growing, applying pressure on the leash. The vascular system is in the trunk perimeter under the crust. Through the years, the pressure increases, the trunk is even more strangulated, and the vascular system is affected. One of the first and principal effects of strangulation is the increase in the trunk or branch diameter over the leash. This diameter change is because elements of the sap can not go back to the roots and keep near the strangulation. At this point, there are two options:
- The tree can sort this by including the leash in its tissues, surrounding and absorbing it, and keep growing normally
or
- The vascular system is so affected that the tree can not sort this problem and so, those parts of the tree located over the leash dye.
<em>In the exposed example, it seems that the tree could make it and included the swing's ropes in the branch. </em>
The data supports the fourth choice, that increasing air temperature and CO2 levels correlate with a decrease in dust concentration.
The first choice is unlikely to reflect dust concentration, and is more likely to be for air temperature. The second choice is false, because the dust concentration is more of a decreasing trend. The third choice is not true, as the spikes in air temperature and atmospheric CO2 concentrations seem to occur simultaneously, implying a positive correlation.
