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Alexxandr [17]
3 years ago
10

Which scenario would cause a covalent bond to form?

Biology
1 answer:
nekit [7.7K]3 years ago
4 0

Answer: A) Two atoms share electrons so they can fill their outer shells

Explanation: A covalent bond is a type of bond formed by sharing equal number of electrons between two non-metal atoms so that both of them can attain a stable octet or duplet structure of noble gases.

In covalent bonding, there is no loss or gain of electrons between atoms. For example, the formation of chlorine molecule, chlorine atom has seven electrons in its outermost shell, remaining one electron to attain an octet structure of noble gases. Two chlorine atoms share one pair of electron, each chlorine atom donating one electron to form a pair so that each atom in the chlorine molecule attains an octet structure..

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What drives motility in sporozoa?
muminat

Sporozoa are non motile organisms.

<h3>What do you mean by sporozoa and why they are non motile?</h3>

Sporozoa are  parasitic non motile protozoa that  have a complex life cycle usually involving both sexual and asexual generation often in different hosts and includes important pathogens. Sporozoans do not have flagella or cillia for locomotion . They depend on twisting and bending on move.

Sporozoa do not have flagella or cillia for locomotion. So, they are non motile .

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5 0
1 year ago
What has resulted in significant climate changes?
Novosadov [1.4K]

Answer:

In colder areas if it becomes warmer and hot which is the weather that area does not normally see then animals that live in this area may die or move locations fast because they are not made to live in hot places. Also nature, for example there are some plants and trees that are made to live in colder weather so when it becomes hot they will die and not grow in this area anymore becuase they cannot just get up and walk away as animals can.

Explanation:

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3 years ago
Given the gene sequence GGACCGTCGATCTTC, which of the following choices would represent an inversion mutation?
Lena [83]

Answer:

D. GGACCGTCGATCCTT

Explanation:

Mutation refers to any change in the nucleotide sequence of a gene. Mutation can be of different types depending on how it occurs. According to the question, an INVERSION mutation is a type of mutation in which a segment of a gene gets broken off and reattached in another way on the same DNA. Hence, the only change in inversion mutation is the arrangement of the nucleotide bases on the gene.

Considering the nucleotide sequence: GGACCGTCGATCTTC, the sequence that describes an occurrence of inversion mutation is: GGACCGTCGATCCTT because the segment TTC in the original sequence has been rearranged as CTT in the mutated sequence.

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3 years ago
Hepa filters are used to remove microbes from:_______
sergiy2304 [10]

Hepa filters can efficiently remove microbes from the air (Option a is correct).

<h3>What are Hepa filters?</h3>

Hepa filters, i.e., high-efficiency particulate air filters, are used to separate microorganisms from the air.

These filters (Hepa filters) eliminate over 99% of microorganisms such as bacteria, dust and pollen particles having a size higher than 0.3µm.

In conclusion, Hepa filters can efficiently remove microbes from the air (Option a is correct).

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2 years ago
A nerve impulse is an electric charge running across a neuron. Explain why the stimulation supports this explanation
Softa [21]

Plato answer:

Stimulation of a neuron causes a change in the charge inside the cell from negative to positive. This change is caused by ions, which are atoms with an electrical charge, moving across the cell. This change within the cell is consistent with the definition of an electric charge.

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3 years ago
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