Which of the following nitrogen bases is unique to RNA?uracil
thymine
cytosine

Answers

Answer 1
Answer:

Answer:

The right option is (A).


Explanation:

The RNA gets its information from DNA to synthesise the proteins. It is different from DNA also due to the difference in one nitrogen basis as uracil. The thymine, the nitrogen basis that is only present in DNA is replaced with uracil to form RNA coding. The uracil also contains the same features as thymine has in DNA strains. Uracil makes a double H-bond with the adenine but does not contain CH4 group which is present in thymine.

Answer 2
Answer: The unique nitrogen base in RNA is uracil.
DNA has the nitrogenous bases of adenine (A), thymine (T), cytosine (C) and guanine (G), while the only differing nitrogenous base in RNA is uracil (U), which replaces thymine (T).

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PLEASE HELP ME 15 points Mollusks are sometimes hard to classify because there are not a lot of characteristics they all share.
True or False
Mollusks are not a very diverse group; there are very few body plans.
True or False
Generally, mollusks have a soft body and most have a shell.
True or False
Gastropods and bivalves are types of arthropods.
True or False
Cephalopods are the smartest types of invertebrates.
True or False
Octopuses have been known to figure out latches and escape their tanks.
True or False
Snails and slugs are bivalves.
True or False

Answers

Mollusks are sometimes hard to classify because there are not a lot of characteristics they all share. 
True

Mollusks are not a very diverse group; there are very few body plans. 
False

Generally, mollusks have a soft body and most have a shell. 
True

Gastropods and bivalves are types of arthropods. 
False

Cephalopods are the smartest types of invertebrates. 
Lol that's sooo False

Octopuses have been known to figure out latches and escape their tanks. 
True

Snails and slugs are bivalves. 
False

Final answer:

While mollusks generally have soft bodies and many have shells, they represent a diverse group of animals with various body plans, not just a few. Gastropods and bivalves are types of mollusks, not arthropods. Cephalopods are considered the most intelligent invertebrates, and octopuses have been known to figure out latches to escape from their tanks. Snails and slugs, however, are gastropods, not bivalves.

Explanation:

The statement implying that mollusks are not a diverse group with very few body plans is false. Mollusks are a highly diverse group with various body plans, including snails, octopuses, and clams. The assertion that mollusks generally have a soft body and most have a shell is true. Mollusks have soft, non-segmented bodies, and many have an external shell. The claim that gastropods and bivalves are types of arthropods is false; they are types of mollusks. The statement that cephalopods are the smartest types of invertebrates is true, as they have complex brains and behaviors. The claim that octopuses have been known to figure out latches and escape their tanks is true. Lastly, the proposition that snails and slugs are bivalves is false, they are gastropods, not bivalves.

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Are the elements in Figure 6-2 metals or nonmetals?

Answers

metals it is metals I am so confident that it is metal 

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Answers

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Answer:

"Line and scatter plot" Is the correct answer

Explanation: i just did the test

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Answers

Answer : As per the law of conservation of energy.

Energy can neither be created nor be destroyed, it can only be transformed from one form to another.

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According to law of conservation of energy,energy must be transformed in ecosystems because  energy can neither be created nor destroyed.

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Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Julius Robert Mayer in the year 1812.The energy only transformed during the processes even in ecosystems it is conserved during the energy flow.

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Zebra mussels, shown below, have recently been found in Colorado lakes.The mussels are not native to the lakes, and they have begun to kill native mussels by attaching to them and covering them up. The zebra mussels are
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an invasive species.
a cooperative species.
a hybrid species.

Answers

an invasive species is the correct answer
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One of the first renaissance scientists to use firsthand observations to write about plants

Answers

Answer:

Valerius Cordus