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Pavlova-9 [17]
3 years ago
10

Food Availability, Places to live, and water availability are all ______ of an Ecosystem.

Biology
1 answer:
Otrada [13]3 years ago
3 0

Answer:biotic factors

Explanation:

They are living

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Where was hydrogen discovered?
julsineya [31]

Answer:

It was discovered 1766

Explanation:

Discoverers: Henry Cavendish, Antoine Lavoisier

Atomic mass:1.0084u

Atomic number:1

7 0
3 years ago
Read 2 more answers
imagine a cell-surface receptor protein is being newly synthesized. How can it get into the membrane that it will ultimately be
motikmotik

Answer:

the steps for a new receptor synthesis:

Explanation:

Do not forget the steps vary from an eukarityc cell to prokarityc one.  

IN AN EUKARYOTIC CELL:

1- Transcription: in the nucleus, mRNA is synthesized from the DNA sequence that codifies the protein. Exons are spliced if needed by spliceosomes.  

2- From nucleus into cytoplasm: mRNA goes through nuclear membrane into the cytoplasm were ribosomes, substrates for protein synthesis and other organelles are.

3- Ribosomes recognize a signal in mRNA and start reading the genetic code, three consecutive nucleotides at a time and adjust the correspondent tRNAs (tRNAs carry the aminoacids)  

4- Peptide bonds are formed between consecutives aminoacids, and a polypeptide is build up according to the mRNA sequence.

5- (The mRNA has a signal that is recognized by the rough endoplasmic reticulum) The peptide goes into this reticulum (RER) and then into Golgi apparatus. (more chemical modifications are made if needed). By this moment the protein has an inserted portion in a lipid membrane.

6- The protein is transported in a vessel that finally fusions with cytoplasmic membrane and the receptor is in destiny. Hydrophobic aminoacid sequences are inserted in membrane.

IN A PROKARYTIC CELL:

1- Transcription (no splicing is needed, there are not exons)

2- There are not nucleus and cytoplasm divided (no transport)

3- Ribosomes recognize a signal in mRNA and start reading the genetic code, three consecutive nucleotides at a time and adjust the correspondent tRNAs (tRNAs carry the aminoacids)

4- Peptide bonds are formed between consecutives aminoacids, and a polypeptide is build up according to the mRNA sequence.

5- The mRNA has a signal that is guides the growing protein to cellular membrane. Hydrophobic aminoacid sequences are inserted in membrane.

8 0
3 years ago
The boundary between the middle and inner ear is the
Kamila [148]
<span>It is separated from the external ear by the
eardrum.</span>
6 0
3 years ago
The typical characteristics for binge-eating disorder include binge-eating episodes
Illusion [34]

Answer:

a) not accompanied by purging

Explanation:

  • If a person has episodes of uncontrollable eating then the person is said to have a problem of binge eating.
  • When a person shows a tendency of frequent and recurring binge eating then the person is said to have binge eating disorder.
  • Binge eating disorder is differentiated from another similar problem which is known as bulimia nervosa.
  • In the case of binge eating disorder a person has a tendency of binge eating but without purging, unlike bulimia nervosa where purging is a characteristic feature.
  • Purging is an attempt to get rid of the excess food consumed and this attempt is not made in case of binge eating.
6 0
3 years ago
What would you say is the most significant result of the technology revolution in archaeology ?
Igoryamba

Answer:

Improvement of preservation techniques.

Explanation:

The most significant result of the technology revolution in archaeology is the improvement of preservation techniques used for archaeological sites. Modern technology also allows researchers to go to a site in order to find out  the answers of additional questions. Modern archaeologists are fighting climate change, discovering how cultures evolved with the passage of time, and using technology to better understand human evolution.

8 0
3 years ago
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