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Nataly_w [17]
3 years ago
12

In cold climates, the amount of snow on the ground may decrease even if the temperature stays below zero degrees Celsius. The pr

ocess that best explains this event is
a. condensation.
b. sublimation.
c. melting.
d. evaporation.
Biology
2 answers:
mars1129 [50]3 years ago
6 0

The answer is b) sublimation.

givi [52]3 years ago
4 0
In cold climates, the amount of snow on the ground may decrease even if the temperature stays below zero degrees Celsius. The process that best explains <span>this event is B. sublimation. </span>
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Excitatory postsynaptic potentials (EPSPs) produced nearly simultaneously by different synapses on the same postsynaptic neuron
lakkis [162]

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.

3 0
4 years ago
Gene expression in eukaryotes can be regulated at many different levels. List the different levels of regulation, and explain wh
Aneli [31]

Answer:

Transcription, mRNA (processing, transport, localization and stability), translation.

Explanation:

  • Transcription is regulated in two levels, though chromatin regulation (methylation and acetylation) to loose or increase histone's affinity to DNA and through cis and trans elements such as promoters, enhancers, and silencers (cis) to active/deactivate and RNA polymerase and transcription factors and co-factors (trans).
  • mRNA can be regulated using poly-A tails or 5'-caps to shorten or give them more time before they degrade, it could also be spliced to eliminate introns.
  • In the translation stage, the regulation occurs during the initiation through a scanning procedure that ensures the 40s ribosomal subunit bind correctly to the untranslated portion of RNA

Hope this information is useful to you!

4 0
4 years ago
After a visit to mt. washington, n.h., some wassail is in order. what is the tradition of the wassail?
balandron [24]
<span>The tradition of wassailing is divided into two brackets: the house-visiting wassail and the orchard-visiting wassail. House-visiting wassail is when people go from door-to-door to sing and offer a drink from the wassail bowl in exchange for gifts. The orchard-visiting wassail is when people visit orchards to exclaim incantations and sing to trees to encourage good harvest for the coming year.</span>
6 0
3 years ago
Please help!
lozanna [386]

B) The data will help to generate a new consensus.


Please correct me if I'm wrong!! :)

6 0
3 years ago
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Identify the energy transformation taking place in a plane​
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Answer:

lift vs weight and thrust vs drag

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