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Firdavs [7]
3 years ago
15

What kind of protist causes dysentery? A euglena B amoeba C algae D slime mold

Biology
1 answer:
slega [8]3 years ago
8 0

Answer:

D

Explanation:

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When an action potential arrives at the axon terminal of a motor neuron, which ion channels open?
HACTEHA [7]

Answer:

Calcium voltage gated ion channels

Explanation:

There are two types of ion channels involved in the neuromuscular junction and end plate potentials: voltage-gated ion channel (responsive to changes in membrane voltage which cause the voltage gated ion channel to open) and ligand-gated ion channel (responsive to certain molecules such as neurotransmitters).

The resting membrane potential of a motor neuron goes from -70mV to -50 with a higher concentration of sodium outside and a higher concentration of potassium inside. <em>When an action potential propagates down a nerve and reaches the axon terminal of the motor neuron, the change in membrane voltage causes the calcium voltage gated ion channels to open allowing for an influx of calcium ions. </em>These calcium ions cause the acetylcholine vesicles  to release acetylcholine via exocytosis into the synaptic cleft.

I hope you find this information useful and interesting! Good luck!

3 0
3 years ago
How do plant fossils and beds of coal support the idea that antarctica once was warmer than it is today?
kifflom [539]
Because those are traces of life meaning that there was life living there once, that life wouldn't have been able to survive there with how Antarctica is now.
5 0
3 years ago
Which glaciers are mainly formed near a mountain?
Nitella [24]
Continental glacier.
8 0
3 years ago
Read 2 more answers
What is ecology? <br><br><br><br><br>10points easy question​
Rzqust [24]

i am not very good at science but i still want to help so i search it up for you

(i searched it up on Bing)

The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.

hope this helps

8 0
3 years ago
Read 2 more answers
Opossums are solitary animals that usually meet in nature only to mate. What is their probable distribution pattern?
Goryan [66]

Random distribution is the probable distribution pattern of opossums.

Explanation:

The opossums are the member of low density population. They are sparsely distributed because of the low number. There are troubles for them to find a mate.

Their habitat makes them solitary as they have flexible dietary habits. they are terrestrial animals living in burrows and are nocturnal.

They have random distribution pattern. The opossums are distributed in the population as random. The mates in opossums do not have choices of mates and the environment conditions in which they live are stagnant.(having no social life). Random interaction is seen in <em>species which do not have any social  bonding</em> between the species of the animals or plants.

7 0
3 years ago
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