The three ways of improving upon the quality of indigenous soap are :-
● Add virgin coconut oil which serves as a softener and betel leaf extract. ...
● Add activated charcoal black granules or powder to the soap, it removes maximum dirt from the skin.
● Adding a filler which will increase the shelf life of usage of the soap will also improve its quality
B) The fossil record provides evidence of a common ancestor to many species
Answer:
Characterstics of larva of silkworm on the basis of body structure is given :
1) The body of larva of silkworm consist of head, thorax and abdomen. The mouth part consist of pair of strong mandibles and a pair of lip.
2) There are three segments of thorax region. Each segment bears a pair of legs. The abdomen part is divided into ten segments. The third, fourth, fifth, sixth and ninth abdominal part produces abdominal appendages called false legs.