Hi,
You did not provide the length of paper clip but i searched this exercise to find the length of the paper clip as So, a small paperclip measures 3.0 cm so i will answer your question according to this length.
The size of a human cell is around 30um and the question is asking that how many would fit along the length of the paper clip measuring 3cm.
3 cm = 30000 microns
= 30000/30
= 1000 cells.
So, if we line up 1000 human skins cells side-by-side, they would fit along the length of the paperclip.
Note: <em>If the length of paper clip is different in your excercise like 1 cm etc, simply multiply the 1 with 10000 and divide the resultant value with 30, this way you can get cell number for the length of any clip.</em>
Hope it helps!
Answer:
d. more permeable to sodium ions.
Explanation:
The binding of Acetylcholine with the receptors at motor end plate facilitate membrane permeability to sodium ions therefore opening of voltage gated channels for sodium ions.
Sodium ions diffused into the synapse of post synaptic neuron at the neuromuscular junction.
If the stimulus is up to threshold levels; more chemical(neurotransmitter) gated sodium channels opens, and sodium ions move into the synapse to depolarize the membrane with reversal of charges to generate action potential.
The continuous binding of Acetycholine , leads to permanent opening of sodium ions,and over excitation from depolarization. Acetycholinesterase enzymes breakdown Acetycholine to choline and Acetyl Co -A. These are recycle back to Acetycholiine
Answer:
They can cause the deprivation of nutrients, fluids, and metabolites. this may also cause pathological effects in their hosts such as pathogenic effects.
There are several ways in which human economics and ecology are linked, but perhaps the most prominent way is that humans tear down forests for fuel and other reasons, which disrupts the environment of many organisms.
