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tigry1 [53]
3 years ago
14

What did the Clean Air Act of 1970 permit U.S. citizens to do for the first time?

Biology
1 answer:
vaieri [72.5K]3 years ago
8 0
I think B is the answer The Clean Air Act That prevented air pollution and protected the ozone layer as well as promote public health. This act gave Enviromen. Protection Agency the power to take effective action fighting environmental air pollution
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Jack was sick with a cold and fever. the doctor prescribed him erythromycin, an antibiotic. analyzing the process of translation
KatRina [158]

Answer:

This is because it is a selective antibiotic that, when entering the body, binds to the 50s subunit of bacterial ribosomes, thus causing the disruption of protein transcription of bacteria.

This drug does not stop the transcription of human proteins since bacteria and humans do not have the same ribosomes, therefore, humans or sick cells do not have the active site to which the drug binds.

Explanation:

This is because it is a selective antibiotic that, when entering the body, binds to the 50s subunit of bacterial ribosomes, thus causing the disruption of protein transcription of bacteria.

This drug does not stop the transcription of human proteins since bacteria and humans do not have the same ribosomes, therefore humans or host cells do not have the active site to which the drug binds.

Erythromycin falls into the macrolide family and is considered a drug that is bacteriostatic at low concentrations and bactericidal at very high concentrations.

The difference between these named terms is that one ends the life of the bacterium (bactericidal) and the other stops the bacterial metabolism preventing its possibility of increasing in number.

5 0
3 years ago
Which cells have more lysosomes a cell in the small intestine or neuron
Ilia_Sergeevich [38]

Answer:

Lysosomes are abundantly found in neuronal cells

Explanation:

Lysosomes are commonly found in the cells of nervous system and specifically abundant in neurons where it can observed at various stages of development. Lysosomes chief function is to degrade cellular wastes.The lysosomes extends from golgi saccules  a vesicular body.Its main function is to bind with a membrane of vacuoles containing waste into which lysosomes releases it hydrolytic enzymes degraded waste inside the vacuoles itself and becomes secondary lysosomes.

5 0
3 years ago
The cells of plants and animals are similar, except for a few different structures. Which structures are only found in
ASHA 777 [7]
I just need this for I can post my question sorry
4 0
3 years ago
Read 2 more answers
Suppose you are studying coyotes and wolves, and you determine that wolves are experiencing a reduction in their population that
PolarNik [594]
<span>If one determines that wolves are experiencing a reduction in their population that can be attributed to a virus the coyotes carry that is more harmful in wolves. this is an example of apparent competition.</span>
4 0
3 years ago
Express this sense sequence as a polypeptide. Use the three letter abbreviation and separate the amino acids with a dash - e.g.
jek_recluse [69]

Answer:

- Protein sequence: Met-Pro-Gly-Lys-Ile-Arg-Arg-Pro-Pro-Gly-Thr-Pro-Leu-Phe-Gly-Lys-*

- DNA 5' UTR: ATTTTAGCC

- RNA 3' UTR: UAAAAAUAAAAU

Explanation:

Transcription is the process in which a DNA sequence (e.g., a gene) is used as template (transcribed) in order to synthesize an RNA molecule, usually a messenger RNA molecule, which is then used as template to produce a polypeptide sequence (protein) in the ribosomes. In RNA, Thymine (T) bases are always replaced by Uracil (U) bases. An mRNA strand is formed in the 5′ to 3′ direction. Each triplet of nucleotides is referred to as a codon and the resulting mRNA strand is translated starting from codon AUG (Methionine), while there are three different stop codons or 'or termination codons' in the genetic code that terminate translation: UAG, UAA, and UGA.

3 0
3 years ago
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