Invertebrate animal Flashcards
(23 cards)
Vertebrates
They are an animal that has a backbone
Invertebrates
They are animals without backbones
Consumer
An organism that eats other organisms or organic matter
Ganglion
A mass of nerve cells
Gut
The digestive tract
Coelom
A body cavity that contains the internal organs
Bilateral symmetry
The property of being divisible into symmetrical halves on either side of a unique plane
Radical symmetry
Symmetry around a central axis
Asymmetry
Lack of equality or equivalence between parts or aspects of something
Sponges
Sponges, the members of the phylum Proliferate, are a basal Metadata clade as a sister of the Diploblasts
Cnidarians
an aquatic invertebrate animal of the phylum Cnidarian, which comprises the coelenterates.
Flatworms
The flatworms, flat worms, Platyhelminthes, Plathelminthes, or platyhelminths are a phylum of relatively simple bilateral
Roundworms
The nematodes or roundworms constitute the phylum Nematode
Mollusks
Mollusca is the second largest phylum of invertebrate animals. The members are known as mollusks or mollusks
Open circulatory system
Where blood goes around the whole body
Closed circulatory system
The blood stays in the veins
Annelid worms
The annelids, also known as the ringed worms or segmented worms, are a large phylum
Exoskeleton
A rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.
Compound eye
An eye consisting of an array of numerous small visual units, as found in insects and crustaceans.
Antenna
They are sensory organs
Metamorphosis
A change of the form or nature of a thing or person into a completely different one
Exoskeleton
An internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.
Water vascular system
A network of water vessels in the body, the tube feet being operated by hydraulic pressure within the vessels.
