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True [87]
3 years ago
12

Entre as características evolutivas que diferenciam as gimnospermas das pteridófitas, estão a:

Biology
1 answer:
dolphi86 [110]3 years ago
8 0

Answer:

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Explanation:

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The model below represents a DNA molecule.
Aleksandr [31]

Answer:

Nitrogen

Explanation:

The nitrogenous bases of the two separate polynucleotide strands are bound together, according to base pairing rules (A with T and C with G), with hydrogen bonds to make double-stranded DNA.

3 0
3 years ago
Content practice a acceleration lesson 3 answers
sdas [7]

Acceleration is defined as the rate of change in the speed of a moving body or vehicle typically.

<u>Explanation:</u>

In the branch of mechanics, the aspect of acceleration is considered to be a property of the vector. And acceleration always occurs in a specific positive direction.

The formula for determining acceleration is change in the rate of velocity over a specific time, and is therefore measured as the ratio of delta velocity by delta time unit.

  \text {acceleration}=\frac{\text {velocity}}{\text {time}}=\frac{\left(\frac{\text {distance}}{\text {time}}\right)}{\text {time}}=\frac{\text {distance}}{\text {time}^{2}}\left(\mathrm{m} / \mathrm{s}^{2}\right)

The unit of acceleration is distance per time unit squared or m / second squared.

8 0
3 years ago
The parathyroid glands are usually located on which surface of the thyroid gland
jekas [21]
On the posterior surface
4 0
3 years ago
What are some examples of social issues?
solmaris [256]

Answer:

Common examples of social issues: Poverty and Homelessness, Climate Change, Civil Rights and Racial Discrimination, etc.

Explanation:

There's so much more examples of social issues down the list, but that'll take to long, these are enough for now.

8 0
3 years ago
What are the functions of the three major forms of RNA (ribosomal RNA, messenger RNA, and transfer RNA)?
vovangra [49]

Answer:

Ribosomal RNA: Structural part of ribosomes

Messenger RNA: Carry genetic information from DNA to proteins

Transfer RNA (tRNA): Transport amino acids to protein synthesizing complex.

Explanation:

Ribosomes are made up of ribosomal RNA (rRNA) and proteins. The catalytic activity for the formation of peptide bonds between amino acids during protein synthesis resides the RNA of ribosomes.  

Messenger RNA (mRNA) is formed by the process of transcription during which the nucleotide sequence of the template DNA strand is copied into that of the RNA. The mRNA serves as a template for protein synthesis. The nucleotide sequence of mRNA is read in the form of genetic codes to specify the amino acid sequence of a protein. In this way, the genetic information stored in DNA is carried to the proteins.

During the process of protein synthesis, tRNAs carry amino acids to the mRNA-ribosome complex so that the amino acids are incorporated into the polypeptide. For the purpose, there is a tRNA with a specific anticodon sequence for a particular amino acid.  

3 0
3 years ago
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