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Anettt [7]
3 years ago
6

Which of the following statements is true about solar eclipses? There is a solar eclipse every month. All solar eclipses are tot

al. Some solar eclipses are not total. There can be twelve solar eclipses in a single year.
Biology
1 answer:
d1i1m1o1n [39]3 years ago
3 0
Some solar eclipses are not total. Hope this helps

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24. An investigator examines voltages resulting from changes in membrane permeabilities. If the cell membrane suddenly had 100 p
omeli [17]

Answer:

Generally, K+ ions ensures re-polarization of  the membrane potential. It always ensures that the neuron returns its resting  state, protecting the  neurons and ensuring episode of rest before the next action potential.

K+ does this by leaving the axon, making the inner layer more negative. This is resting membrane potential. Because there are many K+ channels for leakages out of the neuronal axons.

Therefore, in this scenario, he neuron will return to its resting membrane potential state which between values -50 to -75mV.

Therefore the value of the potential will be -60mV, or within the range of -50 to -60mV. This is because the neuron is is non- excitable.

Explanation:

7 0
2 years ago
Claire wants to present scientific information on climate change. Which group should Claire approach?
9966 [12]
The answer is b I think that is the answer
5 0
2 years ago
Read 2 more answers
How are viruses different from bacteria
Butoxors [25]

I believe the correct answer is that viruses are not cells while bacteria are cells with organelles.

<h2>Explanation:</h2><h3>Viruses</h3>

Viruses can simply be explained as genetic materials enclosed in capsules that protects them from the immune system.

Viruses need a host to survive since they lack a mechanism to replicate in meaning they are obligate intracellular organisms.

Reproduction of viruses is through attaching their DNA or RNA into the machinery of the host that replicates them as part of the normal DNA of the cell.

They are the smallest living organisms and cannot be seen microscopically.

They cannot be infected but rather can infect bacteria

They have a capsid that protects the viral material and also contains the receptors attachments that are able to attach to the specific sites which they are infecting. Some of them have an extra layer of a membrane that is called an envelope that further protects the viruses from their hostile environment

They are treated by antiviral medications that affects their replication on normal cells.

They are pathogenic by destroying the cells they enter after successfully replicating their genetic material.

They can either have DNA or RNA but never both.

<h3>Bacteria</h3>

They are cellular prokaryotes with cell organelles that keeps them functional

They can be obligate intracellular organisms or they can survive outside the cell without any problem depending on the particular species of the bacteria since they have cell organelles that can function.

Bacteria reproduce through a process called binary fission where the cell organelles just double up and the cell pinches into 2 different sections with equal distribution of genetic materials forming 2 different cells.

They can be infected by types of viruses called bacteriophages that use the hosts nucleoid to replicate.

They have a cell membrane and a cell wall which encloses the inner contents of the bacteria and also protects the bacteria from the immune system.

They are treated by antibiotics such as β-lactam antibiotics that destroys their cell wall making it porous and the cell eventually dies.

They do not enter the host for reproduction but rather they kill the host through toxins such as toxin A and toxin B

They do not have a nucleus but have the nucleoid that contains the DNA of the bacterium.

Level: High School

Subject: Biology

Topic: The cell

4 0
3 years ago
Read 2 more answers
Minerals have an ordered internal atomic arrangement. what does this mean?
vladimir1956 [14]
<span>Minerals have an ordered internal atomic arrangement which means that the atoms which make up the mineral are arranged in an ordered geometric pattern or also known as the crystal structure. Thus, it can be concluded that all minerals are crystals. The crystal structure is the same for the same type of mineral. For example, every piece of quartz found anywhere have the same crystalline structure.  </span>
6 0
3 years ago
What is the first thing that Prince harweda does that causes the window to open
Alenkinab [10]

Harweda cares for the bird and begins thinking about its comfort as well as his own.

7 0
3 years ago
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