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shusha [124]
3 years ago
8

Rohanna and her cousin, Simarra, learnt about osmosis in school and planned to investigate the process for themselves. They boug

ht six June plums, of approximately equal size, from May Pen market. This is their method: 1. Peel the plums 2. Remove some flesh from the top and bottom to ensure they are equal length (4.2 cm) 3. Put two plums into each of three quart-size plastic bags, labelled Bag 1, Bag 2 and Bag 3 4. Add one tablespoon of salt to Bag 1 and Bag 2 5. Add half cup of water to Bag 3 6. Seal all bags 7. Place Bag 1 in the refrigerator 8. Place Bag 2 and Bag 3 on the kitchen counter 9. Check the bags after three hours 10. Add observations to a results table. Write a suitable aim for the experiment?
Biology
1 answer:
qwelly [4]3 years ago
6 0

Answer:

por que?

Explanation:

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Explain what happens in the nervous system when your finger is hurt
vladimir2022 [97]

Tissue damage activates nociceptors or pain receptors in the skin. A signal is sent to the peripheral nerve to the spinal cord where neurotransmitters or chemical messengers are released. It activates other nerves to pass signal to the brain. The signals are relayed to the somatosensory cortex for sensation, frontal cortex for thinking and limbic system for emotional response.

4 0
3 years ago
How are convection current in the mantle and in the oceans similar? How are they different?
Vanyuwa [196]

Hello,


Convection currents in the mantle and in the ocean are similar because they both are responsible for the shaping the Earth's surface. Two forces are behind the movement of Earth's huge land masses. Those forces are convection and gravity.


Convection describes the movement of gasses or liquids due to different temperatures. The convection currents just beneath Earth's crust flow very slowly, causing movement in the plates above them. These currents are different with the fact that they produce different plate movements. Ridge push occurs from the convection currents in the ocean. These occur at mid-ocean ridges, which are elevated higher than the rest of the ocean floor. In contrary, convection causes material in the mantle to flow. Due to combined action of convection currents and gravity, Earth's plates are in constant motion.



Faith xoxo


8 0
3 years ago
A sentence with the word Biotic factor
Elodia [21]
 <span>Living things are biotic factors like a dog, fungi and trees

I hope this helps!</span>
7 0
3 years ago
What fear did Robert Darwin have for his son?
ArbitrLikvidat [17]

Answer:

That his son would be a disgrace to himself and to the family

Explanation:

3 0
3 years ago
Phenytoin blocks the opening of voltage-gated na channels in neurons. therefore, this action has its primary effects on which pa
dusya [7]

Numerous antiepileptic medications, such phenytoin, have been designed to block voltage-gated sodium channels (VGSC) in neuronal membrane. In addition, multiple toxins and pharmacological modulators work by attaching to various biophysical states of the VGSC to cause their effects.  Depending on how modulatory agents act, some VGSC states are stabilized or destabilized, altering the channel's biophysical properties. The first anticonvulsant to successfully treat epileptic disorders without causing undesirable side effects such as brain drowsiness was phenytoin.

Phenytoin has been indicated to block high-frequency neuronal activity potentials from the inner vestibule of the pore, as demonstrated by electrophysiological research and site-directed mutation.

Frequency and voltage both affect phenytoin binding.

There are theories that phenytoin interferes with the late sodium current that sustains depolarizations in epilepsy by blocking non-inactivated channels.

To learn more about phenytoin click here

brainly.com/question/13386639

#SPJ4

7 0
2 years ago
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