a) Phloem elements that serve as entry points for substances for transport to other plant parts b) Endodermis of roots facilitating rapid... View Article
a) Ontogeny repeats phylogeny b) All plant & animal cells are totipotent c) Stem cells are specialized cells d) There is no evidence of... View Article
a) They all have jointed paired appendages b) They all belong to the same phylum c) They all possess dorsal heart d) None of them is aquatic... View Article
a) Possible origin of life by combination of chemicals under suitable environmental conditions b) Interaction of water, air and clay under... View Article
a) Melanism is a pollution-generated feature b) The melanic form of the moth has no selective advantage over lighter form in industrial area... View Article
a) No change in the isolated fauna b) Preventing Speciation c) Random creation of new species d) Speciation through reproductive isolation... View Article
a) Biogeographical Evolution b) Retrogressive Evolution c) Evolution due to Mutation d) Special Creation Answer: a) Biogeographical Evolution... View Article
a) Reproduction b) Responsiveness to touch c) Interaction with the environment and progressive evolution d) Growth and movement Answer:... View Article
