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Andreas93 [3]
3 years ago
15

Diego is studying compost. He conducted an experiment to see how moisture levels affect the breakdown of organic materials in co

mpost piles. Diego found that adding 1 L of water per 10 kg of dry matter caused the compost to break down at the fastest rate, but adding more than 1 L caused decomposition to slow down. Which of the following questions do these results lead to? I. Why does adding more than 1 L of water per 10 kg cause decomposition to slow down? II. Does this ratio of water to dry matter hold true for all organic materials being composted? III. Why should anybody want to start a compost pile? A. I, II, and III B. I only C. I and II only D. II and III only
Biology
1 answer:
pshichka [43]3 years ago
8 0

Answer:

Option C , I and II only

Explanation:

The study conducted is done only for people or organisations that either started a compost pile or who want to start a compost pile. Thus result III is not at all a valid question for the study conducted.

However, there can be question related to the result of experiments clarifying  the quantity of additives used in the experiment for  example why only 10 Kg of dry water, why not to add more than 1 L of water , why only water is to be added why not some other solvent etc. Thus question I is a valid question.

Also , question II is valid as it asks about expanding the scope of experiment from one type of organic material to all other type of organic matter in the compost.

There fore both question I and II are valid question and thus option C , is correct.

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Answer: summation

Explanation:

The process which determine if an action potential will be generated or not depends on the combined effects of the signal inputs from multiple sources of  synapse or from the repeated signals from the same synapse.  

If the input signals reach the threshold voltage, action potential will be generated. (all –or –none principle).Therefore, this  process is a determinant of  the likelihood of action potential generation  and it is called summation.

Summation is the ability to integrate multiple PSPs at multiple synapses.it is  the process that determine if an action potential will be generated by combined effects of inhibitory or excitatory  signals.

Based on the pathways and voulme of applied stimuli in the presynaptic neuron;

The signals can be temporal summation ( consecutive  signals  produced from the same  synapse)where action potential of high frequency in the PSN generated action potential in the post synaptic neuron, which summate with one another. Or Spatial where signals inputs are from multiple presynaptic cells.

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Answer:

C.

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Carrying capacity is dependent on available space and nutrients in a given area. Better soil will allow for more crops which means more people can be supported!

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