Invertebrate Zoology Crossword Puzzle

QUESTIONS LIST:

• invertebrate: animals that lack a backbone and vertebral column.
• vertebral column: a structure containing vertebrae that extends from the skull up to the pelvis.
• protochordates: organisms that do not have vertebral column but possess notochord
• chordates: organisms that possess a notochord developed into vertebral column.
• size: diversity classification based on their lowest and uppermost extremities.
• protoplasmic grade: all activities are confined within the limits of a single plasma membrane.
• pseudocoelom: cavity between the body wall and the gut.
• hermaphrodite: bisexual forms are met
• enaima: vertebrate animals having red colored blood.
• oviparous: egg laying animals (amphibians, reptiles, aves, and fishes)
• anaima: invertebrate animals without red colored blood.
• species: a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
• porifera: this phylum represent the early stage of multicellularity in the animal clade.
• cnidaria: this phylum possess a nematocysts which are stinging capsule found in the tentacles.
• placozoa: this phylum is the simplest known animal in the world.