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Amanda [17]
2 years ago
6

The main force that causes filtration in a nephron is:.

Biology
1 answer:
vampirchik [111]2 years ago
7 0
The main force that causes filtration in a nephron is... glomerular hydrostatic pressure.
I hope this helped:)
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Projection maps of earth are made in a variety of ways , such as the Robinson’s projection , Mercator projection, and conic proj
maxonik [38]

Answer:

C. All projection maps are subject to varying types of distortion.

Explanation:

The only truly accurate representation of Earth is the globe, as earth is a sphere. When one tries to map out a 3-d sphere on a piece of paper, it is impossible without some kind of distortion occurring. This distortion happens with distance, size, and sometimes other factors. Different projections are used for different purposes because some are more accurate than others in terms of distance, size, relative position, etc.

4 0
3 years ago
What are the three main factors that affect barometric (air) pressure ?
Mars2501 [29]

Answer:

Temperature

Altitude or Elevation

Moisture or water vapour.

Explanation:

8 0
3 years ago
How can scientists use vertebrate embryo development to build evidence for the claim that vertebrates are somewhat closely relat
Yuri [45]

Answer:

All early vertebrate embryos develop tails and gill slits, and therefore this type of anatomical evidence supports common ancestry  

Explanation:

Embryology is a discipline that studies the structural/anatomical features and development of embryos. Embryos are a fundamental piece of evidence to support common ancestry among vertebrates because there are homologous structural features that can only be observed during the first stages of vertebrate development. For example, all vertebrate embryos (e.g., fish, chicken and human embryos), develop tails and gill slits during their first stages of embryo development. In consequence, embryology provides evidence for evolution of vertebrates.

3 0
3 years ago
I don't know how to do any of this someone pls help me with answers
Darina [25.2K]
Okay First off what are the problems and what are the hardest ones?
5 0
3 years ago
Read 2 more answers
From a chemical view, how is an amino acid is being recognized by its specific aminoacyl tRNA synthetase?
hammer [34]

During translation, rRNA and tRNA read mRNA in 5´ to 3´ direction. According to the codons being readen, tRNA transfers the correct amino acids to build the polypeptide chain. A codon is a short sequence of three nucleotides that store the genetic information for the aminoacids´ assembly.

Each tRNA has two important sites. One of them that couples with the codon of the mRNA molecule, named anticodon. The other site couples with an amino acid through the action of the aminoacyl-tRNA synthase enzyme. The whole complex, amino acid + enzyme + tRNA is named aminoacyl-tRNA.        

Each tRNA is recognized by a specific aminoacyl-tRNA synthase enzyme. The enzyme is also capable of recognizing a specific amino acid. Let us say, for instance, that <em>tRNA is specific for phenylalanine.</em> The molecule is attached to the <em>enzyme that is specific for that tRNA(Phe)</em>. Then, when the enzyme and tRNA(Phe) are together, they get to <em>find phenylalanine</em>. The <em>enzyme links the aminoacid to the RNA</em>. Once the whole complex is formed, the <em>tRNA gets to pair its anticodon with the mRNA codon</em>. This is,

  1. Recognition of enzyme and the specific tRNA(aa) ⇒ aa being aminoacid
  2. Recognition of enzyme and the specific aminoacid
  3. Linkage of the aminoacid to RNA by the enzyme action
  4. Pairing of tRNA anticodon to mRNA codon.

Considering that there are twenty amino acids available, there are also twenty complexes of aminoacyl-tRNA, one for each amino acid. Each of the mRNA codons represents one of the 20 amino acids used to build the protein. Each amino acid can be codified by more than one codon. Of the total 64 codons, 61 codify amino acids, and one is a start codon. The left three codons are stopping translation points.

tRNA decodes genetic information from the nucleotidic sequence in the mRNA molecule and allows amino acids to align composing the new protein.  

Once the new peptidic link joins, placing together the new amino acid to the growing peptidic chain, the binding between the amino acid and the tRNA molecule breaks. The tRNA is now free to join another amino acid and repeat the cycle.

In conclusion, a specific aminoacyl-tRNA synthase enzyme recognizes a tRNA, which is also specific for a certain amino acid. When together, the enzyme recognizes the amino acid and links it to the RNA. The whole complex is known as aminoacyl-tRNA. Once the tRNA is joined to its amino acid, it gets to pair a codon of mRNA to add that amino acid to the new synthesizing protein.

6 0
3 years ago
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