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Strike441 [17]
3 years ago
13

Which statements describe physical weathering? Select all that apply.​

Biology
1 answer:
Anuta_ua [19.1K]3 years ago
4 0
Sometimes called mechanical weathering, physical weathering is the process that breaks rocks apart without changing their chemical composition. These examples illustrate physical weathering:

Swiftly moving water

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Leaves change colors when they lose
kari74 [83]

Answer:

D. chlorophyll, is the best answer

Explanation:

In fall, the leaves stop their food-making process. The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible

Hope this helps!

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2 years ago
Why do we breathe oxygen? how do we get energy out of our food?
lapo4ka [179]
We breath oxygen because it is needed to burn fuel [ sugars and fatty acids] in our cells to produce energy. Oxygen is also brought into the lungs via breathing; where it is transported by red blood cells to the entire body to be used to produce energy. The food we eat gives us protein, sugars, vitamins etc. for energy 
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3 years ago
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Manny is using a computer model to investigate the effects of substitution mutations. The model presents Manny with a long base
Troyanec [42]

Answer:

The most likely explanation for the truncated polypeptide -due to the substitution of cytosine for adenine- is that mutation introduced a stop codon in the middle of the gene.

Explanation:

A codon consists of three nucleotides -in the RNA chain- whose order determines a specific amino acid. Not all codons code for amino acids, as there are termination codons, also called stop codons, which are UAG, UGA and UAA.

If in Manny's computer model, the substitution of cytosine by adenine produced a termination codon, the synthesis of a peptide is stopped prematurely resulting in a truncated peptide.

Learn more:

Stop codon brainly.com/question/6183177

5 0
3 years ago
please somebody help me with science Gel Electrophoresis what are the answer chioces for 1 through ten please whoever report is
AleksAgata [21]

1. A

2. C

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4.B

5. A,B, and maybe C.

6. B

7. D

8. A and B

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6 0
3 years ago
When heart muscles cells are deprived of oxygen, the heart still pumps. what must the heart cells be able to do? transform lacta
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The heart cells must be able to continue aerobic metabolism when skeletal muscle cannot. Aerobic metabolism is a part of cellular respiration and involves body cells making energy through glycolysis, the citric acid cycle, and the electron transport/oxidative. It is done in the heart at a rate below 85% of maximum heart rate and does not use vigorous muscle contraction. fatty acids , ketone bodies and carbohydrates are the primary substrates of the heart metabolized to generate ATP. The metabolic demands of the heart are the largest than any other organ in the body, and normal cardiac metabolism is required to fuel contractile function and viability.
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3 years ago
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