week 11 chordata Flashcards
Are vertebrates a phylum or subphylum?
subphylum
What type of digestive system do vertebrates have?
Complete
What type of circulatory system do vertebrates have?
closed
What kind of symmetry do vertebrates have?
bilateral
Do vertebrates have a coelom?
yes
Do vertebrates have kidneys?
yes
What are the 3 major categories of the vertebral animals that we have talked about in class?
fish, amphibians, reptiles
How are fish 1st divided into categories?
jawless
Of the jawed fish, what 2 different types of skeletons can they have?
cartilaginous, bony
Bony fish can be further divided into 2 categories: what are these? Most fish living today belong to which category? Name 3 examples of fish in this category.
ray finned, lobe finned. most live in ray finned. Gold fish, Salmon, Sturgeon
What would happen if fish eggs were taken out of water?
dry up
Do most fish have lungs or gills? Are they endothermic or ectothermic? How many chambers does their heart have?
gills, ectothermic, 2 chambered hearts
What does the term “amphibian” mean?
double life
Do amphibians have scaly skin or smooth skin? Do they have lungs or gills (or does it depend on their life stage…? Where do they live as larva? As adults? What would happen if their eggs were taken out of water? Say something about their limbs as adults…they are _tetra_pods. Are amphibians endothermic or ectothermic?
smooth skin, adults have lungs, larva live in water, adults live in or around water. Eggs would dry up. They develop limbs, not born with them. They’re ectothermic.
How many chambers does an amphibian heart have?
3
What are 3 examples of amphibian animals?
frogs, toads, salamanders
What is a word that sounds like “amniote” that refers to the fluid surrounding a developing amniote embryo? If eggs are laid outside the female’s body, are they on land or in water? What do you notice that amniote eggs have on the outside that fish or amphibian eggs don’t have?
Amniotic fluid, Eggs on land, amniotes have a waterproof shell to be laid on land without drying out.
One of the characteristics of amniote animals’ kidneys is that they help the body to conserve what?
water
What is the skin of an amniote animal like? What protein is the surface layer of such animals’ skin made of?
keratin protein
What are the 2 major categories of amniotes?
mammals, reptiles
What 2 categories can reptiles be divided into?
birds, non-birds
What are 3 categories of mammals?
monotremes, marsupials, placenti
