Transcript Unit 7 - Images

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 ____