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Katyanochek1 [597]
2 years ago
15

This fossil bird and this living salamander both have tails. However, they have different tail structures. The bird has a very s

hort tail made of just one bone that helps it have a light skeleton for flying. The salamander has a long tail with many bones that helps it balance while it runs. What most likely explains why both the bird and salamander have tails and why the tails are different
Biology
1 answer:
creativ13 [48]2 years ago
6 0
Birds like to lay fossils. Salamanders have tails btw.

Hope this helped!
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Secondary structure is determined by interactions between amino acid side chains and tertiary structure is determined by interac
STatiana [176]

Answer:

False

Explanation:

The sequence of amino acids in a protein is determined by the DNA and the structure of protein thus formed is a linear sequence.  These linear structures undergo structural changes due to the formation of bonds between the constituent molecules.  

When bonds are formed by the interactions between the CO group of one chain and the -H group which forms the backbone is known as the secondary structures. Two types of arrangements arise of this that is the helical and pleated sheet.

When the bonds are formed between the side groups or the R group of the amino acid therefore the amino acid structure formed is known as the tertiary structure.

Thus, false is the correct answer.

6 0
2 years ago
When the distance between the balls decreases, the size of the arrows increases. This shows that the gravitational pull
shepuryov [24]

True

Explanation:

The statement that when the distance between the balls decreases, the size of arrow increases because it shows the gravitational pull between the two balls which increases is true.

According to Newton's law of universal gravitation:

 "The gravitational force of attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of their separation".

Mathematically, the law is written as:

                     F = \frac{G m_{1} m_{2} }{r^{2} }

F is the gravitational force

 G is the universal gravitational constant

  m is the mass of the body

  r is the distances between them.

We see that the less the distance between the two bodies the more the gravitational force they have.

learn more:

Gravitational force brainly.com/question/1724648

#learnwithBrainly

8 0
3 years ago
Read 2 more answers
Recall that DNA and RNA are synthesized only in the 5'→3' direction and that DNA and RNA sequences are written in the 5'→3' dire
aleksley [76]

Answer:

<u>The Transcription mRNA</u>

5'- AUG-CCC-GUU-UGG-AGA-UCG-GGU-UAC-AGC-UAG-3'

<u>The translation product</u>

5' Met-Pro-Val-Trp-Arg-Ser-Gly-Tyr-Ser-3'

Explanation:

Transcription is a process which transcripts the DNA to a molecule called mRNA or messenger RNA which contains code for the synthesis of amino acids.

The RNA nucleotide base pairs are added in the same way as in the DNA that is guanine will bind cytosine but adenine will bind uracil instead of thymine.

Since the start codon is AUG which codes for methionine and stop codons could be UAG, UAA or UGA which do not code for the amino acids during translation.

In the given question,  

Looking for the start codon which is AUG in the template strand is found and the transcript mRNA thus will be coded as

<u>Template strand</u>

3' AACTT-TACGGGCAAACCTCTAGCCCAATGTCGATCAGTTTC 5'

<u>The Transcription mRNA</u>

5'- AUG-CCC-GUU-UGG-AGA-UCG-GGU-UAC-AGC-UAG-3'

<u>The translation product</u>

5' Met-Pro-Val-Trp-Arg-Ser-Gly-Tyr-Ser-3'

8 0
3 years ago
What is the main function of the circulatory system in multicellular organisms?
spin [16.1K]
To transport materials throughout the body (i think) :)
8 0
3 years ago
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Why do carnivorous plants eat insects?
Basile [38]

Answer:

Meat-eating, or carnivorous, plants can trap and digest insects and other small animals. They do this to obtain the vital nitrogen that they need to grow. Most plants absorb enough nitrogen from nitrates in the soil. Carnivorous plants live in bogs, where nitrates are in short supply, so they need to obtain their nitrogen by digesting prey instead. Carnivorous plants have developed unique ways to catch insects, such as fluid-filled PITCHERS and spring-loaded traps.

8 0
2 years ago
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