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igor_vitrenko [27]
3 years ago
6

How are particles arranged in the atom

Biology
2 answers:
soldi70 [24.7K]3 years ago
8 0

the number of electrons are the same numbers of protons these electrons are arranged in shells or energy levels around the nucleus

liberstina [14]3 years ago
5 0
Protons and neutrons are located in the nucleus. electrons are found on the electron cloud which surrounds the nucleus
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What are the three sections of the small intestine and what role does each section play in digestion or absorption?
leva [86]

Answer:

The three sections of the small intestine are the duodenum,

Explanation:

The duodenum

It receives chyme from the stomachs

Its intestinal cells enzymes such as secrete amylase, sucrase, and lipase enzymes that break down fats and sugars.

The jejunum

It is covered in villi and microvilli giving the name THE PRINCIPAL SITE of digestion.

the ileum.

Aid absorption e.g. amino acids, lipids, fat-soluble vitamins, and vitamin B12.

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When a biological vector is used, which process must take place before recombinant DNA can be placed in the host cell?
Tasya [4]
<span>The appropriate response is gene isolation. The absence of interbreeding or minimal hereditary blending between living beings of similar species. Supplement. Hereditary confinement might be the consequence of geographic disengagement or of other segregation systems that anticipated effective generation.</span>
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4 years ago
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What challenges can species habitats present to estimating biodiversity
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Biodiversity means  the variety of life on earth. The challenges that species habitats can present to estimating biodiversity is the high number of specie biodiversity in a certain habitat. This is not considered a good thing since <span>common and widespread species are invading it at the expense of species restricted to that habitat. Hope this answer helps.</span>
8 0
4 years ago
Albinism is a condition in which pigmentation is lacking. In humans, the result is white hair, non-pigmented skin, and pink eyes
stealth61 [152]

Answer:

1/4 or 25% chance/ probability of having an albino child.

Explanation:

Albinism is a recessive trait, this means that a person need 2 copies of the allele to express this condition. If both parents are normal their genome must be Aa ("A"=normal condition and "a" recessive allele) when they produce gamets they could either be "A" or "a" but when fertilization happens there's a 25% chance of 2 gametes with the recessive trait to meet, hence producing an albino.

It is important to understand that this is only probability. A couple could have 6 children and all of them could be normal.

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3 years ago
How is chloroplast like mitochondria
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