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• The sentence should read: "No one knows what color dinosaurs were because no sample of their skin has survived."
• کوئی نہیں جانتا ہے کہ ڈایناسور کیا رنگ تھے کیونکہ ان کی جلد کا کوئی نمونہ زندہ نہیں بچا ہے۔
• "Because" is a subordinating conjunction used to introduce a dependent clause that provides a reason or explanation for the main clause.
• In this case, the lack of surviving skin samples is the reason why we don't know the color of dinosaurs.

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In the test, we will assess your work and then provide you with detailed feedback.

This word specifically denotes the act of evaluating or appraising something systematically.

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• Bombyx mori, which is the scientific name for the Mulberry silkworm.
• This species is widely cultivated for its silk production.
• It is often referred to as the "Domesticated silkworm" or simply "Silkworm".

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• RNA polymerase is the enzyme responsible for transcribing DNA into RNA during the process of transcription.
• It reads the template DNA strand and adds nucleotides to a growing RNA chain.

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