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What characteristic separates invertebrates from vertebrates? the presence of a backbone
Which phylum in the Animal Kingdom has the most species? Phylum Arthropoda
What type of symmetry is found in the worms? bilateral
Name 3 specialized cells in the sponges? collar cells, flagellated cells, cells that produce the spicules, amebocytes, pore cells
What makes a flatworm flat? lack of body cavities
What makes a roundworm round? fluid within the pseudocoelom; the hydrostatic skeleton
What makes a segememted worm segemented? segmented body wall
What helps octopi move swiftly through the water? siphons
The bristles on the earthworm are called ______. setae
What type of feeding do the clams use? filtering water through their mantle cavity
What makes an animal, an animal??? multicellular, eukaryotic, heterotrophic, nutrition by ingestion, sexually reproducing
What are the main characteristics of the Arthropoda? jointed appendages, exoskeletons of chitin, open circulatory system, segmented bodies
Most insecticides enter insects through their respiratory openings called ______________. spiracles
Insects have _____pairs of legs, while arachnids have _______pairs. 3; 4
Organisms that have both male and female reproductive parts are called _____________. hermaphrodictic
What type of circulatory system do the Annelida have? closed
All worms respire (breathe) through their ______? skin (cuticle)
Examples of Porifera? sponges
Examples of Cnidaria? Hydra, sea anemone, jellyfish, man-o-war
Examples of Platyhelminthes? flukes, tapeworm, Planaria
Examples of Nematoda? Ascaris, pinworm, hookworm
Examples of Annelida? earthworm, leech, marine worm
Examples of Mollusca? clams, snails, squid, slugs
Examples of Arthropoda? any insect, lobster, shrimp, centipede, millipede, spiders
Examples of Echinodermata? starfish, sand dollar, sea cucumber, sea urchin
What are the stinging cells of Cnidaria? cnidocyte
In the life cycle of indirect development, what is the dormant stage called? pupa
The tubules of the insects respriatory system are called? trachae
What are the phyla with radial symmetry? Cnidaria, Echinodermata
What is the main characteristic of the Echinoderms? the water vascular system
The water vascular system of the starfish uses individual ____________ form movement and feeding. tube feet
A bundle of nerve tissue at the anterior end of an organism functions a "simple brain" or ________. ganglion
In the earthworm's digestive tract, the food is stored in the ____________ and ground in the _____________. crop; gizzard
Mollusks with 2 shells hinged together are called ? bivalves
An insect's life cycle in which the body form changes completely? complete metamorphosis
The blood pressure in an earthworm is controlled by the __________________? dorsal blood vessel and aortic arches
The insects body plan consists of 3 segments called? head, thorax, abdomen
What are the 4 stages of complete metamorphosis in the insects? egg, larva, pupa, adult
What the 3 stages of incomplete metamorphosis in insects? egg, nymph, adult
What are the main characteristics of the Porifera? no specialized tissues, body wall penetrated by pores, filter feeders
How are the insects able to change out their exoskeletons if it will not grow with them? the will shed (molt) the exoskeleton periodically
Why do the parasitic worms usually lack a structure for movement? living within the hosts provides them with everything that they would need
Advantages of an exoskeleton. jointed, provides attachemt for muscles, hard to protect, special shape for function
Disadvantages of an exoskeleton. heavy and hard to move, will not grow and must be shed, left unprotected until new one forms
In the Cnidaria, food is captured by? paralizing prey with stinging cells
Animals that are sessile usually aquire food by ___________. filtering food from the water
Detritus feeders get their nutrition from? organic material in the soil or sand that they eat
The gastropods are herbivores and remove food from rocks and plants using a scrapping tongue called a ___________. radula
Insects are very successful because of the many mouthparts that they have developed, name some? sucking, chewing, siphoning, mandibles for crushing
What injects the venom from the cnidocyte to the prey? nematocyst
Created by: biobob