Answer:
A.ferns
D.small leafy plants
E.songbirds
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Answer:
6. Homeostasis
Explanation:
Definition of homeostasis
I believe vestigial structures are evidence of evolution because organisms inherit anatomy from their ancestors.
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This would impact the food chain. The smallest disruption causes drastic changes within an ecosystem.
Answer:
B
Explanation:
RNAi is a cellular mechanism for post-transcriptional gene silencing. After transcription of a gene into mRNA, small interfering RNA (siRNA) and microRNA (miRNA) can target the mRNA to form dsRNA. This mRNA then becomes a target of ribonucleases such as the Dicer that break it apart. These mRNA, therefore, do not reach the cytoplasm for translation by ribosomes. This mechanism is hence harnessed and manipulated by scientists to study genes by silencing them.