Grasshoppers have no ears, instead they use an organ called the tympanum located in the first segment of their abdomen, whereas humans take in sound waves through the ear canal until they reach the eardrum. The eardrum picks up the vibrations and then transmits them to tiny bones in the middle of the ear, the bones pass the vibrations to the inner ear (which is filled with liquid) and the cochlea.

Hope I could help.

8 0

3 years ago

Compare and contrast the characteristics of the three domains.

Llana [10]

three domains , archae- 1st appeared, prokaria- not closed by nucleus and eukaria closed by nucleus

6 0

3 years ago

Each answer box represents a mechanism by which eukaryotes can regulate gene expression. Determine which of the five mechanisms

LuckyWell [14K]

Answer:

Change in chromatin structure-------Acetylation of histones facilitates transcription

Activity of transcription apparatus------Transcriptional activators increase promoter activity by interacting with the RNAPII holoenzyme

RNA processing---------Alternative splicing produces different transcripts from the same gene.

RNA interference-------A siRNA and the transcript it targets is transcribed from the same gene.

Initiation of translation-------Limited availability of initiation factors prevents translation of mRNA.

3 0

3 years ago