dichotomous keys assignment for bio PDF

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Summary

biology 20
key assignment for bio
and more including pictures and type of fish
with description....

Description

Florida cartilaginous fishes

A)Black tip shark(Carcharhinus limbatus)

B) Southren stingray(Dasyatis american) This fish lives on the sea floor. It uses its spine-covered tail for defense Body wide and flattened.Nose come to a Rounded point.

This shark is the most common species Long Floida’s coast, the body is long, And streamlined, his head is pointed with the rest of the Body. The dorsal (black) fin is gray With a black tip.

C) Scalloped hammerhad shark (Sphyma lewini)

D) Sandbar shark (carcharhinus plumbeus)

This shark swims in schools.Scientists think that The unique shaep of its head highest the sharks of smell The body is long and streamlined.

The head is flattened with extended lobes Dorsal fin is solid gray or blue The nose comes to a sharp point The tal is short with fins(clearnose skate) The upper caudal(tail) fin is about twice as long As it lowers caudal fin.

E) Shortfin mako(Isurus oxyrinchus) This shark is extremely fast, swimming up To 75km/h(46mph) and its bale to jump more than 9 meters (30 feet) in the air. The body is long and streamlined The head is pointed and streamlined with On each side.The rest of the body. The dorsal is solid gray or blue. The upper cadual (tail) fin is about same length As the lower cadual fin (shortfin mako)

This shark is the most common shark in the western Atlantic ocean.Sand bar Sharks can live more than 20 years,

The body is long and streamlined. The head is pointed and streamlined with On each side.The rest of the body. The dorsal fin is solid gray or blue.The upper cadual (tail) fin is about twice as long as it lower cadual fin (sanbar shark)

F) Bonnehead shark(sphyrna liburo) Bonnehead are unique in that they can secrete same of their brain fluid to alert other bonnedthaed In the area to their presence. His head is lattened with extended lobes on Each side.The dorsal is solid gray or blue. shaped like a shoval. the body is long,And streamlined,

G) Atlentic Stingray(Dasyatis sabina) Atlantic stingray are the some of the Few fish in teh world that can live in Bouth fresh water and salt water. The body is wide and flattened The nose comes to a sharp point The tail is long and whip-like(Atlanctic stingray)

H) Clearnose skate(Raja eglanteria) The body is wide and flattened The nose comes to a sharp point The tail is short with fins(clearnose skate) As it name implies its nose is transparent Skate differ from raysin that their tails lack spines and tehy lay egg instead of giving birth to live young....