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Ad libitum [116K]
3 years ago
12

The majority of mass in living things come from 6 elements. From the options below select 4 elements that are most commonly foun

d in a living things.
A.) Sodium
B.) Sulfur
C.) Nitrogen
D.) Chlorine
E.) Potassium
Biology
1 answer:
ollegr [7]3 years ago
7 0
Carbon, hydrogen, oxygen and nitrogen are the 4 most commonly found in living things.
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Low elevation and low latitudes result in ____________________
DiKsa [7]

Answer:

5

Explanation:

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3 years ago
Exposure to environmental tobacco smoke (ets) causes approximately _______ nonsmokers to die of heart diseases annually.
Arte-miy333 [17]
Exposure to environmental tobacco smoke causes approximately 45 to 46,000 non smokers to die of heat diseases annually. Smoking harms the cardiovascular system in many ways which include; damaging the lining of arteries, reduces HDL, good choresterol, Raises LML, bad cholesterol, increases blood pressure and heart rate, it also causes the platelets to stick together in the blood stream and speeds the development of fatty deposits in the arteries among other risk factors. 
7 0
3 years ago
Free nucleotides must be available in a cells nucleus to produce mrna strands. where do these free nucleotides come from
iren [92.7K]
<span>All four nucleotides (adenine, guanine, thymine, cytosine) are synthesized in the liver. The nucleotides can be synthesized de novo or recycled through salvage pathways. The synthesis occurs in the cytoplasm of the cell, not within a specific organelle. The components which are used for the nucleotide synthesis are derived from biosynthetic precursors of carbohydrate and amino acid metabolism, and from ammonia and CO2.</span>
8 0
3 years ago
Regulatory and basal transcription factors regulate transcription by binding to the promoter.A) True B) False
Licemer1 [7]

Answer:

False

Explanation:

In eukaryotes apart from RNA polymerase, the transcription of genes requires many different proteins called transcription factors. These transcription factors are important to initiate and regulate transcription.

There are two types of transcription factors regulatory and basal transcription factors. Basal transcription factors regulate transcription by binding to a gene promoter and regulatory transcription factor regulates transcription by binding to some regulatory sequences for example enhancers and silencers.  

Therefore only basal transcription factor binds to the promoter for regulating transcription. Therefore the statement is false.

4 0
3 years ago
A species that is only found in one location on Earth is called a/an:
gtnhenbr [62]
The answer is Endemic Species

Endemic species refer to those that can only be found in a particular geographic location such as a specific island, habitat, or other pre identified zones. To be categorized as an endemiz species, that species must only be found in 1 specific location and nowhere else in the world

One of the example of endemic species is Comodo Dragon that can only be found in Comodo Island, Indonesia
8 0
3 years ago
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