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Archy [21]
2 years ago
13

The photo shows a seedling that is growing. Which stimulus causes the stem of the seedling to grow upward?

Biology
2 answers:
serious [3.7K]2 years ago
6 0
No photo so guess is D
slava [35]2 years ago
3 0
Answer choice D - sunlight
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What type of ion channels in the membrane of neurons open or close in response to a neurotransmitter binding to its receptor
bagirrra123 [75]

An ion channel in the membrane of neurons which <u>open or close</u> in response to a neurotransmitter that binds to its receptor is called:  ligand-gated channel.

<h3>What is an action potential?</h3>

An action potential can be defined as a sudden, fast change in electrical (voltage) potential with respect to the transmission of an impulse to a receptor, across a cellular membrane such as:

  • A nerve cell
  • A muscle cell

<h3>What is a neuron?</h3>

A neuron is a nerve cell that is saddled with the responsibility of transmitting electrical impulses down an axon across a cellular membrane of the body of a living organism through an action potential.

In Science, a ligand-gated channel is a type of ion channel in the membrane of neurons which <u>open or close</u> in response to a neurotransmitter that binds to its receptor.

Read more on neurons here: brainly.com/question/13076783

4 0
2 years ago
On 2
soldi70 [24.7K]
B, because the mitochondria is the power house of the cell meaning it’s where the energy is made in a cell.
3 0
3 years ago
Which process most likely enabled the formation of the early protists?
sergejj [24]

Answer:

endosymbiosis.

Explanation:

By the beginning of the 20th century, researchers thought that plastids and mitochondria could come from bacteria. These would have been ingested by primitive cells and live within them in symbiosis.

5 0
3 years ago
What were two consequences of the French and Indian War? Include the Proclamation
34kurt

Answer:

1. The French and Indian War began in 1754 and ended with the Treaty of Paris in 1763. The war provided Great Britain enormous territorial gains in North America, but disputes over subsequent frontier policy and paying the war's expenses led to colonial discontent, and ultimately to the American revolution.

2. In the long-term, the Revolution would also have significant effects on the lives of slaves and free blacks as well as the institution of slavery itself. It also affected Native Americans by opening up western settlement and creating governments hostile to their territorial claims.

6 0
3 years ago
A geologist finds this ridge of sediment while out in the field. The geologist notices a glacier in the distance.
Zanzabum

Answer:

Moraine

Explanation:

8 0
3 years ago
Read 2 more answers
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