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miskamm [114]
3 years ago
12

Which of these is not a response to internal stimuli?

Biology
1 answer:
GalinKa [24]3 years ago
6 0

wearing glass to protect from uv rays

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10,000-15,000 years ago

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Son agrupaciones de estrellas reunidas bajo el mismo nombre. Estas estrellas reunidas bajo la misma región celeste forman aparentemente una figura.
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missive segment is the axon hillock. The main activity that occurs at the transmissive segment is the release of neurotransmitte
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Explanation:

The main activity that occurs at the transmissive segment is the release of neurotransmitter from synaptic vesicles . Prior to the arrival of the action potential, Ca2+ pumps embedded in the plasma membrane of a synaptic knob establish a calcium concentration gradient by pumping it out to the IF. Consequently, there is more calcium inside of the synaptic knob than outside it.

Further Explanation:

At synaptic junctions:

  • The action potential travels along the membrane until the synapse where it’s electrical depolarization leads to the opening of channels allowing Ca2+ to rush into the terminal due to higher extracellular concentrations
  • these flow through a presynaptic membrane until the concentration is built up, activating ion sensitive proteins attached to vesicles containing neurotransmitters
  • this leads to changes in the proteins leading to the fusion with the membrane of the presynaptic cell, so vesicles are open and neurotransmitter is released. The neurotransmitter diffuses across to chemical receptors on the presynaptic cell where they bind temporarily
  • This leads to activation of specific complexes, enabling the transmission of information. Thus, the chemical signal is transferred through this neuron as an electrical impulse

Learn more about the autonomic nervous system at brainly.com/question/10386413

Learn more about neurotransmitters at brainly.com/question/9424160

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#LearnWithBrainly

Read more on Brainly.com - brainly.com/question/13844620#readmore

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2 years ago
What are some facts about arachnids
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There are many facts about arachnids.
Here are some:


1. Arachnids are invertibrates (No backbone)
2. Arachnids include spiders, mites, harvestmen, and pseudoscorpions.
The scientific name is Arachnida, and the higher classification name is Chelicerata.
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Compare and contrast the circulatory system of animals and plants. Show five differances .
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Animal’s and Plant's circulatory system:

1. Animals have circulatory system for the transport of nutrients and waste and plants have vascular system for the exchange of gases and nutrient.

2. Animals have specialized circulatory systems like.ARTERIES,VEINS and CAPILLARIES.

3. IN PLANTS, they have bidirectional transport system…like FOOD prepared though PHOTOSYNTHESIS is transported to different parts of plant body through phloem..while minerals and water intake by roots r transported by xylem..

4. ANIMALS circulatory system works on presence of amount of blood.

5. PLANTS circulatory system works on availability OF resources.


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