Explanation:
Class Crustacea
•  Mainly aquatic, generally marine but few freshwater and few live in moist places.
•  Free living but few are parasitic forms
•  Head often fused with thorax to form cephalothorax covered dorsally by carapace.
•  Head bears a pair of compound eyes and five pairs of appendages.
•  Thorax and abdomen often with a pair of biramous appendages in each segment; appendages modified for various purpose.
•  Respiration either by gills or general body surface.
•  Coelom greatly reduced, it is in the form of haemocoel.
•  Blood vascular system comprises a dorsal contractile heart communicating by valvular ostia with an enclosing pericardial sinus.
•  Excretory organs are modified coelomoducts which may be either maxillary glands or antennary (green) glands.
•  Sexes usually separate; sexual dimorphism is common.
•  Development includes metamorphosis with free larval stages.
Examples: Streptocephalus, Daphnia, Mysis, palaemon

Reference: Invertibrate Zoology By P.S.Verma, Page no: 733 & Animal Kingdom By D. Bhaskara Rao, Page no: 61.

Explanation:
Cloves (Syzygium aromaticum)
Cloves are the dried unopened flower buds of an evergreen tree belonging to the myrtle family and indigenous to the Moluccas or Spice Islands in what is now eastern Indonesia. The spice is brown and resembles a nail with a large round head. Cloves must be picked just before the flowers open to have the bud present. The spice is then typically sun dried.

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Reference: Spices and Seasonings: A Food Technology Handbook By Donna R. Tainter, Anthony T. Grenis, page no: 74.