Phylum 5-9 Flashcards
What is phylum number 5?
Phylum Mollusca
How big is phylum Mollusca?
100,000 species
Is Mollusca relatively large or small?
Large
What are examples of animals in mollusca?
snails, mollusks, slugs, oysters, bivalves, octopus, squid,
What are characteristics of phylum Mollusca?
- soft body
- no segmentation
- univalve- one shells
- bivalve- two shells
What are the three habitat’s of Mollusca?
Ocean (mostly), fresh water, and land.
What are the three classes of Phylum Mollusca?
Gastropoda, Bivalvia, and Cephalopoda.
What are examples of Gastropods?
Snails and Slugs.
What is a Slug?
A snail without the snail.
What kind of symmetry does a baby gastropod have?
Bilateral symmetry.
What kind of symmetry does an adult snail have?
Asymmetrical symmetry.
What is the mantel?
A thin curtain in the shell that separates the two parts of the clams.
What are some economic importances of clams?
- serve as a food source for people
2. pearls
How are pearls formed?
formed by sucking in water circulating grains of sand it.
What is the third class of Mollusca?
Cephalopoda
What animals are in class cephalopoda?
Squid and octopi (ocean animals)
What do squid and octopi have in common with humans?
Good eyesight.
What do squid and octopi have in common with each other?
They both have tentacles.
How many tentacles do squids have?
they have 10 TEN-tacles lolololol
What are the characteristics of the class cephalopoda?
- Weapon system
- Locomotion well
- extremely well developed nervous system
- Well developed head.
- Prominent eyes.
What is an example of a squid?
the giant squid`
What is the giant squid?
- the largest invertebrate (no backbone)
- lives deep in the ocean
- 50 ft long
Are all squids as big as the giant squid?
no most are quite small
What is phylum 7?
Phylum Arthropoda-
What does Arthopoda mean?
jointed appendages
How big is phylum arthro?
1,000,000 species
Is arthro relatively large or big?
the biggest phylum
What makes up 90 percent of Arthropoda?
insects
What is the habitat of cephalopods
the ocean
Where do arthropods live?
fresh water and land
What are the characteristics of arthropoda?
- jointed appendages
- segmentation
- exoskeloton
Is there segmentation in arthopods like the earthworm?
No, they mostly have a head thorax and abdomen.
What is there exoskeleton made up?
chitin
Is the exoskeleton for arthropoda thick or thin?
thin
What kind of exoskeleton do crabs and lobsters?
thick and it is called a shell
What is molting?
It is when an animal outgrows its hard shell, and has its soft shell.
How many days does it take for the shell to harden?
4-5 days
What kind of circularly system do animals in arthropoda have?
open circularly
What is an open circularly system?
the blood is not always inside the vessel
What the does ostitia do?
the little valves in the heart that let the blood back in the heart
What kind of symmetry does a arthropod have
bilateral
What is a herbivore?
a heterotroph that eats plants
What kind of herbivores form a problem for farmers?
insects because they eat all the crop
What is a carnivore?
heterotrophs that eat both plants and animals
What are omnivores?
hetrertrophs that can eat both plants and animals
What is class Chilopoda?
centipede
How are centipede’s bodies organized?
One pair legs per segment.
Does a centipede have more than 1,000 legs?
No, it has less than 100 legs
How many pairs of antennae do centipede have?
one pair
What is the temperament of centipede’s like?
agressive
What is the second class of Phylum Arthopoda?
Diplopoda
What is Class Diplopoda?
milipede
What is the shape like for a millipede?
rounded from top to bottom
What is the shape like for a centipede?
squashed from top to bottom
How long is a millipede?
It is 1 - 1/2 inches long
What is the temperament of a millipede?
Docile
What is the third class of arthropoda?
Crustacea
What is the Class crustacea?
crabs, shrimp, crayfish, barnacles
What is a cephlothroax?
head and thorax fused together
how many babies does the pregnant female shrimp produce?
60,000 babies
How does a fish breathe?
with gills
How many pairs of legs are attached to the cephlothroax?
five pair of legs are attached to the cephalothorax.
What are the first of those two pairs?
claws
How many pairs of antennae do crustaceans have?
two
Do other animals have 5 legs and two antennae?
no only crustaceans do
Where do barnacles live?
at the bottom of a whale
What are the economic importances of crustaceans?
- food for other marine animals
2. food for other non marine animals such as humans
What are coplepods?
the most abundant source of meat, trillions of them
What are they important for?
filter feeding
How does a blue Whale eat the copepods?
swims with its mouth open and filters out the krill
What the fourth class arthropoda?
Class archinda
What is Class Arachnida?
spiders, tarantulas, mite, scorpions, horse shoe crab
How many segments do animals in class archinda?
two segments
How many antennae do millipedes have?
one pair.