How is protein synthesis different in prokaryotes and eukaryotes? a. in prokaryotes, proteins are not formed. b. in prokaryotes, transcription and translation happen at the same time. c. in prokaryotes, dna is in a long strand. d. in prokaryotes, transcription does not need to happen.

The correct answer is option B

Explanation:

Translation is the process of synthesis of proteins from mRNA in organisms  and transcription is the process of synthesis of mRNA from DNA.

Both prokaryote and eukaryotes shows the presence of translation but both shows many differences in the process of protein synthesis like site of transcription and translation as in eukaryotes transcription takes place in nucleus while translation takes place in cytoplasm. Since prokaryote lacks the nucleus, both transcription and translation takes place in cytoplasm and lacks the process related to post-translational modifications due to which they take place at the same time.

Thus, option B  is the correct answer.

i think the answer is b.

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.