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
List the six common characteristics of amphibians.
Their endoskeleton is made mostly of bone
Their skin is smooth with many capillaries and pigments
They usually have two pairs of limbs with webbed feet
They have as many as four organs of respiration
They have a three-chambered heart
They are oviparous with external fertilization
What is the difference between a frog and a toad?
Frogs have smooth, wet skin and live near water
Toads have dry, warty skin and need not live near water
For most amphibians, what is the major respiratory organ?
Their skin
What are the three types of bone cells?
Osteoblasts
Osteocytes
Osteoclasts
What is the protein in bones called?
Collagen
What are the two types of bone tissue?
Compact bone tissue
Spongy bone tissue
What does bone marrow produce?
Blood cells
Which skeleton supports the head, neck, and trunk?
The axial skeleton
Which skeleton has the limbs attached to it?
The appendicular skeleton
The vertebrate system is composed of…
Veins, arteries, and capillaries
What do red blood cells carry?
Oxygen
What do red blood cells get their color from?
Hemoglobin
Which development: an egg outside the female’s body
Oviparous
Which development: an egg inside the female’s body
Ovoviviparous
Which development: inside the female, connected to her by a placenta
Viviparous
What is the function of the spinal cord?
It sends messages from brain to other parts of the body and vice-versa
What is the function of the air bladder?
It allows fish to change depths and float in the water
What is the function of the gonad?
Reproduction
What is the function of the liver?
Makes bile for the digestion of fats and does many other chemical tasks
