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This document serves as a guided lab manual for students conducting a shark dissection focusing on the external anatomy of sharks. It includes prelab instructions, procedures for measuring and identifying

How to fill out shark dissection external anatomy

How to fill out Shark Dissection: External Anatomy

1. Gather the necessary materials including a shark specimen, dissection tools, and a dissection guide.
2. Place the shark on a dissection tray and secure it if necessary.
3. Begin by examining the external features of the shark, noting the shape, size, and coloration.
4. Identify and label key external structures such as the dorsal fin, pectoral fins, and pelvic fins.
5. Observe the gills and the mouth structure, taking care to note their positions.
6. Use a ruler to measure the length of the shark from snout to tail.
7. Record your observations and draw diagrams to illustrate the external anatomy.
8. Clean your workspace and dispose of any waste materials appropriately.

Who needs Shark Dissection: External Anatomy?

1. Students studying marine biology.
2. Individuals interested in anatomy and dissection.
3. Educators teaching courses in biology or zoology.
4. Research scientists focusing on marine life.

People Also Ask about

What are the external features of a dogfish shark?

Spiny dogfish are slim, with a narrow, pointed snout and characteristic white spots. They are gray above and white below. They have two dorsal fins with ungrooved large spines. Males grow up to 3.3 feet, and females grow up to 4 feet.

What are three features of the shark's anatomy that make it well suited to its aquatic environment?

Sharks have key adaptations including a cartilaginous skeleton, streamlined body shape, and specialized sensory organs that enhance their survival in the ocean. Their efficient swimming, acute senses, and unique teeth types contribute to their effectiveness as predators.

What is the digestive anatomy of a dogfish shark?

The straight stomach has internal rugae and ends with a muscular pyloric sphincter. The small intestine is the duodenum anteriorly, and then a long coiled portion with internal small folds called plicae, which increase the surface area. There is a short large intestine, which enters the cloaca via the .

How many gill slits does a dogfish have?

Look at the diagrams and follow in your shark the passage of water in the mouth and spiracles (which have a one way valve) and through the five gill slits. The gill slits close and the pharyngeal chamber expands to in water.

What are the external features of a fish?

External Fish Anatomy Fins. Fins are appendages used by the fish to maintain position, move, steer and stop. Scales. Scales in most bony fish -- most freshwater fish other than gar that have ganoid scales, and catfish which have no scales -- are either ctenoid or cycloid. Gills. Eyes. Nares. Mouth. Lateral Line. Vent.

What are the main external features of a shark's anatomy?

The shark has a graceful and streamlined body shape built for fast, long distance swimming. The body is divided into the head, trunk, and tail. The shark's body is dark gray above and almost white below. Along the sides of the body is a light-colored horizontal stripe called the lateral line.

What sensory organs do dog sharks have?

Ampullae of Lorenzini. Ampullae of Lorenzini ( sg. : ampulla) are electroreceptors, sense organs able to detect electric fields. They form a network of mucus-filled pores in the skin of cartilaginous fish (sharks, rays, and chimaeras) and of basal bony fishes such as reedfish, sturgeon, and lungfish.

What are the external structures of a great white shark?

White sharks are classically shaped with a triangular dorsal fin, pointed snout and crescent shaped caudal fin. They are identifiable by a sudden color change on their flanks which transitions from greyish-black on top to a very pale, almost white, underside.

For pdfFiller’s FAQs

What is Shark Dissection: External Anatomy?

Shark Dissection: External Anatomy refers to the study and examination of the external features of a shark's body, including its fins, eyes, gills, and skin texture, to understand its morphology and adaptations.

Who is required to file Shark Dissection: External Anatomy?

Students, educators, and researchers involved in marine biology or anatomy studies are required to file documentation for Shark Dissection: External Anatomy as part of their curriculum or research.

How to fill out Shark Dissection: External Anatomy?

To fill out Shark Dissection: External Anatomy, individuals must accurately describe each external feature, label diagrams if necessary, and document observations in a structured format, often provided by educational institutions.

What is the purpose of Shark Dissection: External Anatomy?

The purpose of Shark Dissection: External Anatomy is to educate students about marine biology, enhance understanding of fish anatomy, and foster skills in observation and scientific reporting.

What information must be reported on Shark Dissection: External Anatomy?

The information that must be reported includes detailed descriptions of external structures, measurements of various anatomical features, observations regarding coloration, textures, and any adaptations observed.