Crickets know when we approach because they are sensitive to vibrations and noises. Since most predators are active during daylight, crickets chirp at night. The slightest vibration might mean an approaching threat, so the cricket goes quiet to throw the predator off its trail
Answer:
The correct answer will be option-B (Semi-synthetic)
Explanation:
Chemical drugs can be synthesized through many ways on the basis of which they can be categorized:
1. Natural Drug: The drug prepared from the natural extracts.
2. Synthetic Drug: The drug is synthesized by chemical reactions.
3. <u>Semi-synthetic Drug</u>: The drug which is neither completely natural nor synthetic that is they are prepared from the natural extracts by modifying them.
Since in the given question, the drug was prepared by the converting side chain to the hydroxyl group of the antimicrobial drug therefore it is considered as the semi-synthetic drug and Option-B is the correct answer.
It is different types of species about .biological species concept, the phylogenetic species concept, and the morphological species (morphospecies) concept
it would be thermoreceptor but i think it is A) pain receptor