Module 13: Phylum Chordata Flashcards
What do sea squirts, lampreys, and amphibians have in common?
They all go through metamorphosis from larva to adult
What is the difference between cartilage and bone?
Cartilage is more flexible and weaker than bone
What kind of blood vessel has a thin wall?
A capillary
What do red blood cells do?
Red blood cells carry oxygen in the blood
What protein gives red blood cells their color?
Hemoglobin gives red blood cells their color
Which brain lobe is responsible for the muscle movement?
The cerebellum
Which brain lobe is responsible for vision?
The optic lobe
When the female receives sperm from the male and the lays an egg which hatches, what kind of fertilization is this? What kind of development is this?
The fertilization is internal and it is an oviparous development
Which has the most inflexible skeleton: a ray, a lamprey, or a salmon?
The salmon’s skeleton is less flexible
What do Atlantic salmon and many lampreys have in common?
Atlantic and many lampreys are anadromous
What is the shark’s most sensitive means of finding prey?
The shark’s most sensitive means of finding prey is its electrical field sensor
What function does the lateral line perform in sharks and bony fish?
The lateral line senses vibrations in the water
What function do the dorsal fins perform in both sharks and bony fish?
The dorsal fins are used for balance in the water
What function does the anterior dorsal fin perform in bony fish?
The anterior dorsal fin is used as a defensive weapon because it is hard and sharp
What is the major difference between the tail of a ray and the tail of a skate?
Rays have thin, whiplike tails, while skates have thicker, fleshy tails
