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PSYCHO15rus [73]
3 years ago
6

What are the basic building blocks of DNA and RNA? A. nucleotides B. phosphorous C. proteins D. sugar

Biology
2 answers:
vlada-n [284]3 years ago
6 0

Answer is option A. nucleotides

saveliy_v [14]3 years ago
5 0

Answer:

(A). Nucleotides

Explanation:

The nucleotides are the basic unit in formation of DNA and RNA. The both nucleic acids contain nucleotides with different nitrogenous bases. The nucleotide consist of ribose sugar, phosphate and a nitrogenous base.

The ribose sugar is present in the RNA and deoxyribose in the DNA. In the absence of phosphate group, the ribose sugar and nitrogenous base forms a nucleoside.

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Figurative Language 8:Question 3
kari74 [83]

Answer:

Calm is to chaos

Explanation:

Calm and chaos are antonyms, so that is what you are looking for in your answer choice.

Stillness and quiet are basically synonyms (both describing something peaceful.)

reply and interpretation are more like cause and effect, as in you can interpret a reply.

calm and chaos are antonyms.

movement and commotion are synonyms.

7 0
3 years ago
Describe the origin of the cell theory
lesya692 [45]
There are 2 fundamental theoretical approaches detailing the origin of the cell: purely naturalistic, and theistic. The naturalistic approach involves a number of possible theories, the goal being to find the simplest combination of critical functional elements that could be called a living entity and not requiring a cell membrane, rather some form of metabolically and reproductively viable configuration that could be called the first lifeform. This is considered marginally viable as the cell membrane is essential for holding the cell together, protecting the interior, and allowing the outflow and influx of chemicals necessary for cellular function. A more challenging and less substantiated theoretical approach with a number of theories calls for all atoms of the chemical elements needed for the construction, operation, and reproduction of the first cell overtime collect and interact at increasingly higher levels of complexity until a complete cellular entity results. Neither answers the question how the non-living material collected actually comes alive.

The theistic approach proposes that God designed the total requirements for the first cellular life then set the conditions for its elemental collection, biochemical assembly and ultimate transition to a living entity.The viability of this approach is high considering the problems it solves:
1. The non-existence of any natural processes or forces to accomplish the total cellular assembly or transition to living status.
2. The absence of any combination of conditions that could colocate, coincide, concentrate, and mitigate contamination of required elements.
3. Resolve the creation and assembly of homochiral amino acids with homopolymer sugar backplanes.
4. Create and code the DNA, RNA and proteins required for cellular operation and reproduction. DNA and RNA are made of proteins but DNA is required to produce proteins.
5. Create and assembly the cell membrane that accomplishes all the required functions.
6. The accomplishment of all the above under environmentally stressful conditions of the primordial Earth.

Much more could be added.
7 0
4 years ago
Some complex multicellular organisms are organized at four levels to increase efficiency. What is the correct order of organizat
AysviL [449]
<span>The answer is letter D. The simplest to most complex life organization is: cell, tissue, organ, organ system. Multicellular organisms are composed of the building blocks of life called cells. When cells are grouped together they form tissues that perform specific functions in an organism. Further in the line, when tissues are grouped together they form organs; organs are responsible in performing bodily functions in organisms. The heart, lungs, and brain are the most important organs in the human body. When organs work in an interconnected way they are called organ systems. </span>
4 0
3 years ago
This illustration shows the flexion of the elbow joint. Identify two body systems that play a role in this action, and describe
storchak [24]
The answer is elbow because it will fle
7 0
3 years ago
Read 2 more answers
In the proton-proton chain, four hydrogen nuclei are converted to a helium nucleus. This does not happen spontaneously on earth
SCORPION-xisa [38]

Four hydrogen nuclei are converted to helium nuclei in the proton-proton chain. This does not occur naturally on Earth because the process requires it. extremely high temperatures, pressures, and densities

The proton-proton chain is a series of reactions that fuses four hydrogen nuclei to form one helium nucleus. The energy is derived from the mass difference between the four hydrogen nuclei with higher masses and the single helium nucleus with lower masses. Energy is released when hydrogen is fused into helium: mass to energy conversion. Because mass is created during the proton-proton chain, energy is released. However, this is essentially the end of the story for the nuclear fusion reactions that occurred in the early Universe, known as Big Bang Nucleosynthesis.

Learn more about proton here:

brainly.com/question/1252435

#SPJ4

8 0
1 year ago
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