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Invertebrate Animals Digestive: filter feeders Respiration: diffusion (through water) Circulatory: diffusion Excretion: diffusion Nervous: none Movement: none (sessile) Reproduction: sexual and asexual (budding) Digestive: use nematocysts (stinging cells) Respiration: diffusion Circulatory: diffusion Excretion: diffusion Nervous: nerve net Movement: some sessile, some by “jet propulsion” Reproduction; sexual and asexual (budding) Digestive: carnivores, scavengers, or parasites Respiration: diffusion Circulatory: some diffusion. Some have a gastrovascular system Excretion: flame cells, or out mouth Nervous: ladder-like nervous system with brain in some, light sensitive Movement: cilia and muscle movement Reproduction: sexual, asexual, hermaphrodites Digestive: some free-living, some parasitic Respiration: diffusion Circulatory: diffusion Excretion: diffusion, NEW: anus Nervous: simple ganglia, sense organs Movement: snake-like or thrashing, uses muscles Reproduction: sexual, some hermaphrodites Digestive: herbivores, carnivores, filterfeeders, detritus feeders, parasites Respiration: through gills or mantle cavity Circulatory: open circulatory system (But octopus, squid – closed) Excretion: anus – feces; nephridia – liquid wastes Nervous: clams-simple; octopus-very complex, well-developed brain, sense organs Movement: swim-”jet propulsion’, crawl with tentacles Reproduction – separate sexes, external fertilization, some internal fertilization, some hermaphrodites Digestive: digestive tract (mouth, pharynx, esophagus, crop, gizzard,intestine, anus); some filter feeders Respiration: some gills, some diffusion through skin Circulatory: closed circulatory system with primitive heart Excretion: feces–anus; liquid-nephridia Response: brain, well-developed nervous system, sense organs, ventral nerve cord Movement: longitudinal and circular muscles: crawl, swim, burrow Reproduction: most-sexually, external fertilization, separate sexes, some hermaphrodites Feeding: herbivores, carnivores, parasites, filter-feeders, detritus feeders Respiration: gills (crabs); book lungs (horseshoe crabs and spiders); tracheal tubes (grasshoppers) Circulatory: heart with open circulatory system Excretion: feces-anus; liquid- Malpighian tubules, green glands Nervous: brain, well-developed nervous system, complex senses (ex: compound eyes) Movement: well-developed muscle systems coordinated with nervous system and connected to exoskeleton fly, swim, walk, crawl Reproduction: sexual- internal fertilization Trilobites (all extinct) Chelicerates - (spiders and, ticks- Arachnida, horseshoe crabs) Crustaceans (crabs, crayfish, lobsters, pill bugs) Uniramia (centipedes, millipedes, insects) Complete metamorphosis Egg larva pupa adult Butterflies, flies, moths Incomplete metamorphosis Egg nymph adult Grasshoppers, cockroaches Digestive: carnivores, filter-feeders, detritus feeders Respiration: diffusion through tube feet Circulatory: all systems shared, no specific system Excretion: feces-anus, other- through tube feet and gills Nervous: primitive, nerve ring around mouth, chemo and light sensitive cells statocysts – balance Movement: tube feet, muscles attached to endoskeleton swim, crawl Reproduction: separate sexes, some hermaphroditic, external fertilization Digestive: all types; digestive system Respiration: gills – pharyngeal slits, lungs Circulatory: closed circulatory system Excretion: feces-anus; excretory systems (kidneys, etc.) Nervous: complex brain and nervous system; hollow dorsal nerve cord Movement: complex muscular system coordinated with nervous system Reproduction: sexual, some external and some internal fertilization; have systems How are animal cells different from plant cells? The front of an organism is called… What is the difference between a brain, ganglia, and a nerve net? How do planarians get rid of excess water? Humans can get trichinosis by eating undercooked ____ Reefs are made of what animals? Describe three evolutionary trends. What are the basic characteristics of animals? What is a cephalopod? Ammonia is removed from the blood of mollusks by… List the subphyla of arthropods and give examples Muscles of arthropods are attached to the…. An arthropod that has three distinct body parts is a(an)... Concentration of nerves and sense organs in the head is called… The main advantage of sexual reproduction is Where are the gills of a clam? Snails and slugs breathe by… Spiders (arachnids) have how many legs? How many pairs? Larvae of echinoderms change from ____ symmetry to ____ symmetry. Tunicates are classified as (invertebrates, vertebrates) and in phylum ____