No; some mice may have developed lung cancer in less than 500 days of cigarette smoke exposure.
Answer:
Invertebrates are the organisms in which backbone or vertebral column is absent.
The three macroinvertebrate categories are annelids, mollusks and arthropods.
Annelids are the organisms having segmented body. They are found in moist places. Examples are leeches and earth worms.
Mollusks are the organisms which are enclosed in a calcium carbonate shell. Examples are snails and slugs.
arthropods are the invertebrates which have segmented body and jointed appendages. Examples are insects and crustaceans etc.
Answer:
They include: mutations in transcription factors and signalling proteins; mutations in factors that regulate the methylation of DNA and associated histone proteins; mutations in the protein complex cohesin, which regulates chromatin structure; and mutations in proteins involved in splicing
Explanation:
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