Todays lab dissection burrows into the fascinating world of errant
... mussel beds and below rocky outcroppings. The colonies appear as rounded honeycomb massed that range from 10 cm to 2 m across in size. Isolated honeycomb worms are also widely distributed among the mussels but are less prominent -- just twisted sandy tubes lying on surfaces here and there. Special A ...
... mussel beds and below rocky outcroppings. The colonies appear as rounded honeycomb massed that range from 10 cm to 2 m across in size. Isolated honeycomb worms are also widely distributed among the mussels but are less prominent -- just twisted sandy tubes lying on surfaces here and there. Special A ...
Segmented Worms
... quickly go to their burrow underground, and hide for protection. Some of these worms sit-&-wait in their burrow and they are ready to attack any animal that comes too close. ...
... quickly go to their burrow underground, and hide for protection. Some of these worms sit-&-wait in their burrow and they are ready to attack any animal that comes too close. ...
BIO 2135 - Animal Form and Function Midterm
... closes to dig down and into the sediments}{shell opens to anchor as the foot digs deeper}. Most students won’t include the role of the shell or won’t explain it properly so they only need six of the {} to get the full marks for the question. ...
... closes to dig down and into the sediments}{shell opens to anchor as the foot digs deeper}. Most students won’t include the role of the shell or won’t explain it properly so they only need six of the {} to get the full marks for the question. ...
Discovering Biodiversity in Time and Space
... Although lightning storms are thought to have been very common in the primordial atmosphere, they are not thought to have been as common as the amount of electricity used by the Miller-Urey experiment may imply. These factors suggest that much lower concentrations of biochemicals would have been pro ...
... Although lightning storms are thought to have been very common in the primordial atmosphere, they are not thought to have been as common as the amount of electricity used by the Miller-Urey experiment may imply. These factors suggest that much lower concentrations of biochemicals would have been pro ...
Q and A About Earthworms - Hudson River Valley National Heritage
... A. The clitellum produces a mucous sheath and nutritive material, and as the sheath slides forward, it picks up ova from the earthworm's ovaries then packets of sperm that had been transferred to the worm from another worm during mating. As the sheath slides off the worm’s head, the ends are sealed ...
... A. The clitellum produces a mucous sheath and nutritive material, and as the sheath slides forward, it picks up ova from the earthworm's ovaries then packets of sperm that had been transferred to the worm from another worm during mating. As the sheath slides off the worm’s head, the ends are sealed ...
Compatibility Mode
... – heads with light-sensitive eyespots, – flaps to detect chemicals, – dense clusters of nerve cells that form a simple brain and a pair of nerve cords that runs the length of the body, and – a branched gastrovascular cavity with a single opening. ...
... – heads with light-sensitive eyespots, – flaps to detect chemicals, – dense clusters of nerve cells that form a simple brain and a pair of nerve cords that runs the length of the body, and – a branched gastrovascular cavity with a single opening. ...
Grasshopper lab - davis.k12.ut.us
... Tympanic membranes (tympanum): Lift both pairs of wings and locate the tympanic membranes on the first abdominal segment. These structures are used to detect sounds waves. Locate the tiny pores or spiracles located on each side of the abdominal segments. These are openings used for respiration. You ...
... Tympanic membranes (tympanum): Lift both pairs of wings and locate the tympanic membranes on the first abdominal segment. These structures are used to detect sounds waves. Locate the tiny pores or spiracles located on each side of the abdominal segments. These are openings used for respiration. You ...
Phylum Cnidaria
... Phylum Annelida • Annelids generally live either in freshwater or soil, though some can live on land as well. Some Annelids obtain nutrients by passing soil through their bodies, while others, such as leeches, are parasitic, sucking the blood of other animals. A few leeches are even carnivorous. • ...
... Phylum Annelida • Annelids generally live either in freshwater or soil, though some can live on land as well. Some Annelids obtain nutrients by passing soil through their bodies, while others, such as leeches, are parasitic, sucking the blood of other animals. A few leeches are even carnivorous. • ...
Multicellular Parasites
... A number of species of parasitic worms can inhabit the human intestinal tract and cause disease. While not microorganisms, they are studied and diagnosed using microscopic and immunologic techniques familiar to microbiologists. Some invade tissue and others do not, so that their presence in the body ...
... A number of species of parasitic worms can inhabit the human intestinal tract and cause disease. While not microorganisms, they are studied and diagnosed using microscopic and immunologic techniques familiar to microbiologists. Some invade tissue and others do not, so that their presence in the body ...
Phylum Cnidaria Characteristics
... Phylum Annelida • Annelids generally live either in freshwater or soil, though some can live on land as well. Some Annelids obtain nutrients by passing soil through their bodies, while others, such as leeches, are parasitic, sucking the blood of other animals. A few leeches are even carnivorous. • ...
... Phylum Annelida • Annelids generally live either in freshwater or soil, though some can live on land as well. Some Annelids obtain nutrients by passing soil through their bodies, while others, such as leeches, are parasitic, sucking the blood of other animals. A few leeches are even carnivorous. • ...
Complete and Incomplete Metamorphosis
... The eggs hatch into nymphs. Nymphs looks like small adults, but usually don't have wings. Insect nymphs eat the same food that the adult insect eats. Nymphs shed or molt their exoskeletons (outer casings made up of a hard substance called chitin) and replace them with larger ones several times as th ...
... The eggs hatch into nymphs. Nymphs looks like small adults, but usually don't have wings. Insect nymphs eat the same food that the adult insect eats. Nymphs shed or molt their exoskeletons (outer casings made up of a hard substance called chitin) and replace them with larger ones several times as th ...
Chapter 24
... A number of species of parasitic worms can inhabit the human intestinal tract and cause disease. While not microorganisms, they are studied and diagnosed using microscopic and immunologic techniques familiar to microbiologists. Some invade tissue and others do not, so that their presence in the body ...
... A number of species of parasitic worms can inhabit the human intestinal tract and cause disease. While not microorganisms, they are studied and diagnosed using microscopic and immunologic techniques familiar to microbiologists. Some invade tissue and others do not, so that their presence in the body ...
Annelida - Segmented Worms Domain: Eukarya Kingdom: Animalia
... other three are found as far as 444 m above the seafloor and are holopelagic (movie S3). Two of the demersal species were observed at densities as high as six per cubic meter. All are excellent swimmers, moving both forward and backward with use of long (at least eight-segment wavelength) metachrona ...
... other three are found as far as 444 m above the seafloor and are holopelagic (movie S3). Two of the demersal species were observed at densities as high as six per cubic meter. All are excellent swimmers, moving both forward and backward with use of long (at least eight-segment wavelength) metachrona ...
Earthworm Dissection
... Among the most familiar invertebrate animals are the earthworms, members of the phylum Annelida. The word annelida means "ringed" and refers to a series of rings or segments that make up the bodies of the members of this phylum. Internally, septa, or dividing walls, are located between the segments. ...
... Among the most familiar invertebrate animals are the earthworms, members of the phylum Annelida. The word annelida means "ringed" and refers to a series of rings or segments that make up the bodies of the members of this phylum. Internally, septa, or dividing walls, are located between the segments. ...
Name
... the first three body segments. There are hooks on the last body segment. They can be between 1.5 to 40 mm long. Caddisfly larvae have soft bodies which are protected by a silky case. The hooks help them stay in the case. The case may be made of stones or pieces of wood. Caddisfly larvae are usually ...
... the first three body segments. There are hooks on the last body segment. They can be between 1.5 to 40 mm long. Caddisfly larvae have soft bodies which are protected by a silky case. The hooks help them stay in the case. The case may be made of stones or pieces of wood. Caddisfly larvae are usually ...
Arthropod key
... that matches your insect, and then you follow the directions listed afterwards. You continue to follow the directions until you are given the name of the arthropod. For example, in this key, Question one asks you if the animal has legs or no legs. If it has legs, you go to question 2. If it does not ...
... that matches your insect, and then you follow the directions listed afterwards. You continue to follow the directions until you are given the name of the arthropod. For example, in this key, Question one asks you if the animal has legs or no legs. If it has legs, you go to question 2. If it does not ...
1 FAOyieke FOREWARD This manual provides detailed instructions
... Separate the thorax from the abdomen. Notice that the first abdominal segment overrides the last thoracic segment. Do not remove it with the thorax. The thorax is made up of 3 segments, the anterior or prothorax, the middle or mesothorax and the posterior or metathorax. The dorsal part of each segme ...
... Separate the thorax from the abdomen. Notice that the first abdominal segment overrides the last thoracic segment. Do not remove it with the thorax. The thorax is made up of 3 segments, the anterior or prothorax, the middle or mesothorax and the posterior or metathorax. The dorsal part of each segme ...
Topic 12 Slides PPT - Pleasantville High School
... Aquatic and live in marine or freshwater environments (some adapted to terrestrial environments like the woodlouse – pictured below) Motile Few are parasitic Have biramous appendages (The appendages of arthropods may be either biramous or uniramous. A uniramous limb comprises a single series of segm ...
... Aquatic and live in marine or freshwater environments (some adapted to terrestrial environments like the woodlouse – pictured below) Motile Few are parasitic Have biramous appendages (The appendages of arthropods may be either biramous or uniramous. A uniramous limb comprises a single series of segm ...
Bio Diversity Project - Pleasantville High School
... Aquatic and live in marine or freshwater environments (some adapted to terrestrial environments like the woodlouse – pictured below) Motile Few are parasitic Have biramous appendages (The appendages of arthropods may be either biramous or uniramous. A uniramous limb comprises a single series of segm ...
... Aquatic and live in marine or freshwater environments (some adapted to terrestrial environments like the woodlouse – pictured below) Motile Few are parasitic Have biramous appendages (The appendages of arthropods may be either biramous or uniramous. A uniramous limb comprises a single series of segm ...
Chapter 26: Sponges, Cnidarians, and Unsegmented Worms
... infection or because they cannot recover from other diseases in their weakened condition Tapeworms Members of the class _______________________ are long, flat parasitic worms that live a very simple life They have a head called a __________________ on which there are several suckers and a ring o ...
... infection or because they cannot recover from other diseases in their weakened condition Tapeworms Members of the class _______________________ are long, flat parasitic worms that live a very simple life They have a head called a __________________ on which there are several suckers and a ring o ...
Amphibians
... amphibians thrive on land and in water. However, it puts them at risk of suffocating if their moist environment becomes dry. Dry skin does not allow oxygen and carbon dioxide transfer. • Their permeable skin leaves amphibians vulnerable to toxins in their environment. ...
... amphibians thrive on land and in water. However, it puts them at risk of suffocating if their moist environment becomes dry. Dry skin does not allow oxygen and carbon dioxide transfer. • Their permeable skin leaves amphibians vulnerable to toxins in their environment. ...
All about Leeches - Center for Invertebrate Biology
... Some leeches with a proboscis and others that have jaws are temporary ectoparasites on a variety of different vertebrates including fish, turtles, crocodiles, and humans. These are the bloodsuckers and are the ones that most people think of when the word “leech” is mentioned. They don't need much in ...
... Some leeches with a proboscis and others that have jaws are temporary ectoparasites on a variety of different vertebrates including fish, turtles, crocodiles, and humans. These are the bloodsuckers and are the ones that most people think of when the word “leech” is mentioned. They don't need much in ...
[edit] Reproduction
... mammals). In order to reach the egg surface, therefore, spermatozoa must penetrate these envelopes; indeed, spermatozoa contain enzymes (organic catalysts) that break them down. In some cases (e.g., fishes and insects) there is a channel, or micropyle, in the envelope, through which a spermatozoon c ...
... mammals). In order to reach the egg surface, therefore, spermatozoa must penetrate these envelopes; indeed, spermatozoa contain enzymes (organic catalysts) that break them down. In some cases (e.g., fishes and insects) there is a channel, or micropyle, in the envelope, through which a spermatozoon c ...
Horse-fly
Horse-flies (for other names, see common names) are true flies in the family Tabanidae in the insect order Diptera. They are often large and agile in flight, and the females bite animals, including humans, in order to obtain blood. They prefer to fly in sunlight, avoiding dark and shady areas, and are inactive at night. They are found all over the world except for some islands and the polar regions.Adult horse-flies feed on nectar and plant exudates; the males have weak mouthparts and only the females bite animals to obtain enough protein from blood to produce eggs. The mouthparts of females are formed into a stout stabbing organ with two pairs of sharp cutting blades, and a spongelike part used to lap up the blood that flows from the wound. The larvae are predaceous and grow in semiaquatic habitats.Female horse-flies can transfer blood-borne diseases from one animal to another through their feeding habit. In areas where diseases occur, they have been known to carry equine infectious anaemia virus, some trypanosomes, the filarial worm Loa loa, anthrax among cattle and sheep, and tularemia. As well as making life outdoors uncomfortable for humans, they can reduce growth rates in cattle and lower the milk output of cows if suitable shelters are not provided.Horse-flies have appeared in literature since Aeschylus in Ancient Greece mentioned them driving people to madness through their persistent pursuit. Shakespeare uses the theme of the maddening gadfly in his plays King Lear and Antony and Cleopatra.