Answer:
1. The process in which organisms find and colonize a near lifeless area.
2. They are different from each other because secondary supports life, as primary does not.
3. Pioneer species is a hardly classified species which establish themselves in a disrupted ecosystem and trigger the process of ecological succession.
4. Biotic factors support life and the aspects. Abiotic factors involve external life. They interact with each other when the abiotic provide for the biotic.
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Yes. An example is Methyl Alcohol, absorbs water. (CH3OH) Two elements can form different types of bonds and end up with different compounds. There is a small amount of elements. There is a bigger number of compounds.
There are specific methods to be used when measuring the rate of diffusion over a membrane.
In order to accurately measure the rate of diffusion for water through this permeable membrane you need to account for:
- The difference in pressure
- The surface area of the membrane
- The diffusion barrier
It would be correct to state that the speed at which any movement of water occurs is dependent on the pressure being exerted onto the water. This means that when attempting to calculate the rate of diffusion we need to account for the pressure difference. This pressure will be caused by the osmotic gradient.
You will also need to account for the surface area of the membrane and the diffusion barrier. The <u>surface area </u>of the membrane allows us to understand how much <u>space </u>the water has to be able to move from one side to the other. Meanwhile, the <u>diffusion barrier </u>tells us how much <u>resistance </u>the water will have to overcome when diffusing.
By taking all of these parameters into account, we can then use Fick's law to accurately calculate the rate of diffusion for the water and therefore the amount of water that is diffusing through the membrane.
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the answer is A because restriction enzymes function in cutting strand of DNA at specufic sites
Ans.
Paper waste prevention is defined as a practice to reduce or eliminate use of paper, which is potential for the efficient use or disposal of paper. It decreases the environmental impacts due to both paper manufacturing and paper recycling, such as demands on forest resources).
Use of advance technologies, such as E-mail (electronic mail) can help in cut down on paper waste. Nowadays, E-mail has replaced conventional letters and faxes as it is more eco-friendly than letters and faxes, which needs paper consumption.
Thus, the correct answer is 'option d). E-mail.'