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Tom [10]
4 years ago
8

Which adaptation helps polar bears maintain a constant internal temperature in cold weather?

Biology
1 answer:
Slav-nsk [51]4 years ago
8 0

Answer:

Thick layers of fat and fur

Explanation:

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Bacteria that are resistant to more than one antibiotic are called superbugs. Compare the control and antibiotic data from the t
DochEvi [55]

A and C, I got it correct

3 0
3 years ago
What facts can you compile that would support a theory that multicellular eukaryotes developed from unicellular prokaryotes?
Delicious77 [7]

Answer:

Multicellular eukaryotes evolved from unicellular prokaryotes by the process of endosymbiosis

Explanation:

All living beings have evolved from three groups of animals closely related with each other.Domains: Archaea,bacteria and eukarya.the archaea and bacteria are unicellular organism surrounded by single cell water and  and coiled stand of DNA. Eukaryotic cells are more complex and with a linear  strand of DNA which is in the nucleus. Actually mitochondria which had evolved from a free living bacterium which was swallowed by another cell. The host cell benefited from the chemical energy that mitochondria produced and mitochondria in turn is benefited to be inside the protected environment. Mitochondria is the main organelle which the multicellular eukaryotes with unicellular prokaryotes.

3 0
3 years ago
What results from the addition or deletion of nucleotides in any number except a multiple of 3?
eimsori [14]
Addition or deletion of nucleotides in any number besides 3 results in a "frame-shift mutation."
This is because every 3 nucleotides of DNA/mRNA exons codes for a single amino acid in the synthesis of a protein. This triplet codon theory means that if 3 nucleotides are added or deleted then an amino acid will be added or lost, but subsequent codons and amino acids will still be read correctly.
However, if any number of nucleotides other than 3 are added or removed, then the codons following the mutation will be out of "sync," in terms of the reading order.
Hence it is called a frame-shift mutation because it shift the reading frame when translating nucleic acids into proteins. Frame shifts will lead to the wrong amino acids being adding in the wrong order for the rest of the code after the mutation.
8 0
3 years ago
Which element is found in proteins and nucleic acids but not in carbohydrates
solmaris [256]

proteins: H,C,N,O &S,P

Nucleic:H,C,N,O,&P

Carbohydrates:H,C,O

Lipids :H,C,O,N,P.

4 0
3 years ago
The common name for C 6 H 12 O 6 is
elena55 [62]
<span>Aldohexose is the common name</span>
8 0
3 years ago
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