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Gelneren [198K]
2 years ago
15

Genes are ___.

Biology
1 answer:
Bad White [126]2 years ago
7 0

Answer:

4. all of the above

Explanation:

all of these are correct so...all of the above

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A postsynaptic neuron has three presynaptic inputs - from neurons X, Y, and Z. Stimulation of neuron X causes the postsynaptic n
xenn [34]

Answer:

Y is probably excitatory and Z is probably inhibitory

Explanation:

  • Two neurons communicate with each other generally by releasing neurotransmitters.
  • The neuron which releases the neurotransmitter is termed as presynaptic neuron and the neuron to which the neurotransmitter binds to exert its effects is called as postsynaptic neuron.
  • Based on the nature of the neurotransmitter released, the presynaptic neurons can either be inhibitory or excitatory in nature.
  • The change in the membrane potential of the postsynaptic neurons depends on the total sum of inputs coming from different pre synaptic neurons at a given time.
  • From the given situation, the stimulation by X alone is causing deploarization of 0.5 mV which shows that it is causing excitation, and since depolarization is increasing when X and Y are stimulaneously stimulated Y is also excitatory in nature. However the depolarisation is not occurring when X and Z are stimualted together and hence, Z is probably inhibitory in nature.
3 0
3 years ago
A scientist performs an experiment in which they create an artificial cell with a selectively permeable membrane through which o
Alborosie

Answer:A. Water moves into the cell

Explanation:water moves into the cell through osmosis.during osmosis water moves from a region of low concentration of solute to a region of high concentration of solute.the glucose introduced into the cell makes it more concentrated.

In this case the cell is hypertonic and water would enter into the cell through the semi permeable membrane.this membrane allows water to pass through but not glucose.this movement of water into the cell causes the cell to become turgid.

3 0
3 years ago
Based on the image below what should the person do
shusha [124]

Answer:

The answer is C. Hope this helps

Explanation:

3 0
3 years ago
Read 2 more answers
_____ in carbon dioxide in your red blood cells, which causes _____ in ph, causes your breathing to speed up. see concept 42.6 (
Sphinxa [80]

 Increase in carbon dioxide in your red blood cells which causes a drop in PH causes your breathing to speed up. If you hold your breath, rising carbon dioxide blood gas changes first leading to the urge to breathe. Carbon dioxide enters blood at the abdominal organs, hindlimbs, capillaries of the head.

4 0
3 years ago
Why might soils rich in organic matter not be fertile?
eduard
<span>Soils rich in organic material are always highly fertile.</span>
8 0
3 years ago
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