A.
Nouns: human, insect, relative, soil, species, support, twin;
verbs: breathe, close, hide, include, support;
adjectives: close, common, curious, human, lovable, other, scientific, similar;
adverbs: close, especially.
B.
Plants: sunflower, eucalyptus, elm, bluebell, beech, oak;
insects: moth, butterfly, caterpillar, dragonfly;
birds: canary, swan, crow, jackdaw, goose, duck, turkey;
animals: ape, elk, horse, lion, hare, goat.