Earthworm Dissection – Ch 15
... this phylum. The adult worm may have more than 100 of these segments. The earthworm is well adapted to its terrestrial way of life. Its streamlined body helps it to burrow through the soil and it secretes a covering of mucus to help it slide through the soil. The wet and slimy coating of mucus is al ...
... this phylum. The adult worm may have more than 100 of these segments. The earthworm is well adapted to its terrestrial way of life. Its streamlined body helps it to burrow through the soil and it secretes a covering of mucus to help it slide through the soil. The wet and slimy coating of mucus is al ...
DISSECTION OF A FROG
... Air is drawn into the mouth by expansion of the throat. The external nares close, then the throat muscles contract and air is forced into the lungs through the glottis. Air is expelled as the nares remain closed, the throat expands, and the air enters the mouth again from the lungs. The glottis clos ...
... Air is drawn into the mouth by expansion of the throat. The external nares close, then the throat muscles contract and air is forced into the lungs through the glottis. Air is expelled as the nares remain closed, the throat expands, and the air enters the mouth again from the lungs. The glottis clos ...
Squid Dissection Addendum - Long Beach Marine Institute
... Although squid may be bizarre looking and unfamiliar to most humans they do not deserve the title of “monster.” These fascinating creatures are part of the most advanced class of mollusks; Cephalopoda (meaning “head-foot”). A mollusc is defined as a soft-bodied animal that secretes a shell. Familiar ...
... Although squid may be bizarre looking and unfamiliar to most humans they do not deserve the title of “monster.” These fascinating creatures are part of the most advanced class of mollusks; Cephalopoda (meaning “head-foot”). A mollusc is defined as a soft-bodied animal that secretes a shell. Familiar ...
Frog Dissection
... 3. A frog does not chew its food. What does the position of its teeth suggest about how the frog uses them? ...
... 3. A frog does not chew its food. What does the position of its teeth suggest about how the frog uses them? ...
Crayfish Observation and Dissection Purpose: In this lab, you will
... carries cellular wastes to the disk-like green glands. Locate these organs just in front of the stomach. The green glands excrete waste through pores at the base of each antenna. What organs in your body carry out the same function as the green glands? _______________________________________________ ...
... carries cellular wastes to the disk-like green glands. Locate these organs just in front of the stomach. The green glands excrete waste through pores at the base of each antenna. What organs in your body carry out the same function as the green glands? _______________________________________________ ...
11. Earthworm Dissection
... 1. Put on safety goggles, gloves, and a lab apron. 2. Place earthworm in the dissecting tray and rinse off the excess preservative. Identify the dorsal side, which is the worm’s rounded top, and the ventral side, which is its flattened bottom. Turn the worm ventral side up, as shown in the dia ...
... 1. Put on safety goggles, gloves, and a lab apron. 2. Place earthworm in the dissecting tray and rinse off the excess preservative. Identify the dorsal side, which is the worm’s rounded top, and the ventral side, which is its flattened bottom. Turn the worm ventral side up, as shown in the dia ...
Frog Dissection Instructions
... about aided by long flexible tails, and feed on aquatic plants. This is their relationship to fish. After a time, tadpoles undergo an abrupt transition to the adult, more advanced stage, called metamorphosis. During metamorphosis both internal and external anatomical changes occur that enable the Fo ...
... about aided by long flexible tails, and feed on aquatic plants. This is their relationship to fish. After a time, tadpoles undergo an abrupt transition to the adult, more advanced stage, called metamorphosis. During metamorphosis both internal and external anatomical changes occur that enable the Fo ...
EARTHWORM DISSECTION
... small and difficult to see. You will need a dissecting microscope or hand lens. The pumping organs of the circulatory system are five aortic arches. Circulatory fluids travel from the arches through the ventral blood vessel to capillary beds in the body. The fluids then collect in the dorsal blood ...
... small and difficult to see. You will need a dissecting microscope or hand lens. The pumping organs of the circulatory system are five aortic arches. Circulatory fluids travel from the arches through the ventral blood vessel to capillary beds in the body. The fluids then collect in the dorsal blood ...
Frog Dissection Information
... The urinary system consists of the frog’s kidneys, ureters, bladder, and cloaca. The kidneys are organs that excrete urine. Connected to each kidney is a ureter—a tube through which urine passes into the urinary bladder. This is a sac that stores urine until it passes out of the body through the clo ...
... The urinary system consists of the frog’s kidneys, ureters, bladder, and cloaca. The kidneys are organs that excrete urine. Connected to each kidney is a ureter—a tube through which urine passes into the urinary bladder. This is a sac that stores urine until it passes out of the body through the clo ...
Pre-Course Assignment
... Homeostasis is the condition in which the body’s internal environment remains relatively constant (within limits) An organism is said to be in Homeostasis when it’s internal environment: (1) Contains the optimum concentration of gases, nutrients, ions and water (2) Has an optimal temperature (3) Has ...
... Homeostasis is the condition in which the body’s internal environment remains relatively constant (within limits) An organism is said to be in Homeostasis when it’s internal environment: (1) Contains the optimum concentration of gases, nutrients, ions and water (2) Has an optimal temperature (3) Has ...
Name: Date: ______ Period: ______ 2015-16
... The Norway rat, Rattus norvegicus, belongs to the family Muridae, a large group of rodents that includes the house mouse, gerbil, and hamster. The rat is believed to have originated in Asia and migrated to Europe in the mid-1550s. During the fourteenth century it is estimated that almost half of the ...
... The Norway rat, Rattus norvegicus, belongs to the family Muridae, a large group of rodents that includes the house mouse, gerbil, and hamster. The rat is believed to have originated in Asia and migrated to Europe in the mid-1550s. During the fourteenth century it is estimated that almost half of the ...
The System of the Cockroach
... eggs are formed, and a duct that leads from the ovaries to the outside of the insect. Next to the duct is a pouch in which the male’s sperms are stored. The sperms fertilize the eggs. A gland that encloses fertilized eggs in a leathery case is also part of the reproductive organs. This egg case is c ...
... eggs are formed, and a duct that leads from the ovaries to the outside of the insect. Next to the duct is a pouch in which the male’s sperms are stored. The sperms fertilize the eggs. A gland that encloses fertilized eggs in a leathery case is also part of the reproductive organs. This egg case is c ...
SHARK DISSECTION INSTRUCTIONS Part 1: External Anatomy
... A. On the thickest part of the tail out away one piece of skin. The opening should be no larger than two square inches in size. **Remember, you are cutting through the skin only.** Working with a dull probe or the handles of your scissors carefully peel off the skin exposing the underlying muscles. ...
... A. On the thickest part of the tail out away one piece of skin. The opening should be no larger than two square inches in size. **Remember, you are cutting through the skin only.** Working with a dull probe or the handles of your scissors carefully peel off the skin exposing the underlying muscles. ...
Frog Dissection
... along the solid black line through the center. Place a small amount of glue along the outside of the legs along the dotted lines. Paste each half down on the frog, aligning it with the frog body. 11. Complete the same process ABOVE with the frog BELLY. Apply paste at the dotted lines and align over ...
... along the solid black line through the center. Place a small amount of glue along the outside of the legs along the dotted lines. Paste each half down on the frog, aligning it with the frog body. 11. Complete the same process ABOVE with the frog BELLY. Apply paste at the dotted lines and align over ...
Earthworm Dissection
... posterior end, where the anus is located. 4. Look for the worm’s setae, which are the tiny bristlelike spines located on every segment except the first and last one. 5. Review the following information about the clitellum. The clitellum is a swelling of the body found in sexually mature worms and is ...
... posterior end, where the anus is located. 4. Look for the worm’s setae, which are the tiny bristlelike spines located on every segment except the first and last one. 5. Review the following information about the clitellum. The clitellum is a swelling of the body found in sexually mature worms and is ...
Phylum Arthropoda - El Camino College
... Its blood is harvested for a test to ensure medical products are not contaminated. 45 minutes of exposure to the crab's blood is enough to reveal bacteria contamination which otherwise avoid detection It is sensitive enough to isolate a threat the equivalent size of a grain of sand in a swimming poo ...
... Its blood is harvested for a test to ensure medical products are not contaminated. 45 minutes of exposure to the crab's blood is enough to reveal bacteria contamination which otherwise avoid detection It is sensitive enough to isolate a threat the equivalent size of a grain of sand in a swimming poo ...
Earthworm Dissection
... Between lab periods, cover each specimen pinned to the dissection tray with a paper towel dampened with water or WARDSafe. Store the specimen in a plastic bag that is tied securely. Use a felt-tip marker to write students’ names directly on the dissection trays or plastic bags. If you do not wish to ...
... Between lab periods, cover each specimen pinned to the dissection tray with a paper towel dampened with water or WARDSafe. Store the specimen in a plastic bag that is tied securely. Use a felt-tip marker to write students’ names directly on the dissection trays or plastic bags. If you do not wish to ...
Earthworm Dissection Lab
... Pre-lab Discussion: The earthworm belongs to a group of animals called annelids (segmented worms). The body of an annelid is usually divided internally and externally into well-defined segments, which may be separated from each other by membranous partitions. Except for the tail and head regions, al ...
... Pre-lab Discussion: The earthworm belongs to a group of animals called annelids (segmented worms). The body of an annelid is usually divided internally and externally into well-defined segments, which may be separated from each other by membranous partitions. Except for the tail and head regions, al ...
Are You suprised - MATES-Biology-I
... of the jaw caudally down through the middle of the gill slits and through the pectoral girdle down to just above the cloaca. Make certain that the blunt tip of the scissors is the edge used inside the shark. From the cloaca make transverse cuts around the shark. From the pectoral girdle make transve ...
... of the jaw caudally down through the middle of the gill slits and through the pectoral girdle down to just above the cloaca. Make certain that the blunt tip of the scissors is the edge used inside the shark. From the cloaca make transverse cuts around the shark. From the pectoral girdle make transve ...
BIG Dissection Packet
... forward portion of the brain. The eye is crude. Its fixed lens cannot change its focus. Poorly developed eyelids do not move. To close its eye, the frog draws the organ into its socket . A third eyelid, or nictitating membrane, may be drawn over the pulled-in eyeball. There is no external ear . Both ...
... forward portion of the brain. The eye is crude. Its fixed lens cannot change its focus. Poorly developed eyelids do not move. To close its eye, the frog draws the organ into its socket . A third eyelid, or nictitating membrane, may be drawn over the pulled-in eyeball. There is no external ear . Both ...
Dissection
Dissection (from Latin dissecare ""to cut to pieces""; also called anatomization, from Greek anatomia, from ana- ""up"" and temnein ""to cut"") is the process of disassembling and observing something to determine its internal structure and as an aid to discerning the functions and relationships of its components. The term is most often used concerning the dissection of plants and animals, including humans. Human dissection is commonly practiced in the teaching of anatomy for students of medicine, while students of biology often engage in dissections of animals, but also of plants. Dissection is a medical practice utilized in pathology and forensic medicine during autopsy. Vivisection is related to dissection, but is done on living specimens.