Give the names of three useful insects.

Give the names of any three elements whose names have been derived from Latin. Give their Latin names and symbols.

Give the names of three invertebrate chordates.

Write the name of three insect orders which are killed by some strains of bacillus thurenginses ?

Write the name of three insect orders which are killed by some strains of bacillus thurenginses ?

Give the names of three morphological types of lichens.

Give the names of three morphological types of lichens.

Name three social insects.