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FrozenT [24]
3 years ago
8

Which element of the scientific process can not be changed

Biology
1 answer:
andrew-mc [135]3 years ago
4 0

I'm pretty sure that the constant in the scientific process can not be changed because it is constant. If constant isnt an option, a data record can not be changed.

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8. What trait is shared by frogs, humans, hares, caimans, and parrots
zavuch27 [327]

They are all tetrapoda.

Tetrapods are animals (group of vertebrates) with four limbs including amphibians (frogs), reptiles (caimans), birds (parrots) and mammals (hares, humans). Even though the subgroups within Tetrapods differ a lot, they all have various adaptations of the skeleton and muscles that enable them movement on land, adaptations of cranium (for head stability), tissues that reduce water loss (because of living outside the water)…Except amphibians all other tetrapoda are amniotes (have amnion layer around embryo)


7 0
3 years ago
Neuron
professor190 [17]

Answer:

Neurons and muscle cells perform different functions, however they have the same DNA (genetic material) contained within them.

The function of muscle cells is to mechanically contact to allow the body to move in space.

The function of nerve cells is to send and receive signals. in order to trigger an event or elicit a response.

Explanation:

4 0
2 years ago
How does a suspension form
kicyunya [14]
A supension is formed when two or more materials are insoulable so they rest on top of each other. For instance, sand and oil are insoulable (unable to be mixed together) so based on density, one rises above the other, making a suspension.

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3 0
3 years ago
Suppose a mutation affects an enzyme that is required to repair the damage to DNA caused by the loss of purine bases. This mutat
Vsevolod [243]

Answer: There's no way one species can become another through depuranization, which is a random change.

Explanation:

In cells, environmental (chemical or physical) and metabolic factors can cause DNA damage, which is the molecule that stores genetic material. In these cases, the damage done to the DNA is repaired.

<u>Many of these lesions cause a permanent structural damage to the DNA, which can alter the ability to be transcribed, or can cause mutated genes to be transcribed resulting in another protein.</u> Particularly, depurination is the hydrolytically cleavage of the β-N-glycosidic bond between the purines (adenosine or guanosine) and the carbon of the sugar group found in the DNA. This mutation results in the loss of the purine base and leads to the formation of apurinic site and results and severely disrupts the DNA structure. The most important causes of depurination is the presence of endogenous metabolites inside the cell as a result of various chemical reactions and due to the presence of mutagenic compounds. However, these apurinic sites <u>are usually repaired by portions of the base excision repair (BER) pathway</u>.

There's no way one species can become another through depuranization, which is a random change. Because it is highly unlikely that 5000 mutations are able to accumulate every day without being repaired, and that they are just the right mutations to have the same characteristics as a chimpanzee. <u>If the depurinations are not repaired, the cell will most likely either die or become cancerous.</u>

5 0
2 years ago
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