Document
... Kill Deer eggs look like and they lay them in gravel If anything gets close to the young the mother will appear injured by dragging their wing across the ground and limping. Predators will think it’s injured and follow it but the bird stays just one limping step in front of them…the entire time they ...
... Kill Deer eggs look like and they lay them in gravel If anything gets close to the young the mother will appear injured by dragging their wing across the ground and limping. Predators will think it’s injured and follow it but the bird stays just one limping step in front of them…the entire time they ...
Unit 17.2: Overview of Invertebrates
... Ancestors of roundworms also evolved a pseudocoelom. This is a partial body cavity that is filled with fluid. It allows room for internal organs to develop. The fluid also cushions the internal organs. The pressure of the fluid within the cavity provides stiffness. It gives the body internal support ...
... Ancestors of roundworms also evolved a pseudocoelom. This is a partial body cavity that is filled with fluid. It allows room for internal organs to develop. The fluid also cushions the internal organs. The pressure of the fluid within the cavity provides stiffness. It gives the body internal support ...
Diseases of the Salivary Glands
... cause clinical and social problems for the patients. The main part of amylase are produced by the parotid gland, the blood group antigens by the small salivary glands. ...
... cause clinical and social problems for the patients. The main part of amylase are produced by the parotid gland, the blood group antigens by the small salivary glands. ...
Characteristics ~
... The gastrula is made up of three parts: – Ectoderm, a layer of cells on the outer surface of the gastrula, grows and divides developing into skin and nervous tissue. – Endoderm, a layer of cells lining the inner surface of the gastrula, develops into the lining of the animal’s digestive tract. – Mes ...
... The gastrula is made up of three parts: – Ectoderm, a layer of cells on the outer surface of the gastrula, grows and divides developing into skin and nervous tissue. – Endoderm, a layer of cells lining the inner surface of the gastrula, develops into the lining of the animal’s digestive tract. – Mes ...
Classes of Nematodes
... 1. Dissect your animal into two halves by cutting it directly through the mouth from the dorsal to the ventral surface. 2. Notice the central position of the body is covered with curly tubules, the digestive filaments. 3. By moving these to the side or cutting away a portion of them, you can see the ...
... 1. Dissect your animal into two halves by cutting it directly through the mouth from the dorsal to the ventral surface. 2. Notice the central position of the body is covered with curly tubules, the digestive filaments. 3. By moving these to the side or cutting away a portion of them, you can see the ...
Topic 1 The Chordata
... Pharyngeal slits occur in aquatic chordates and lead from the pharyngeal cavity to the outside. ...
... Pharyngeal slits occur in aquatic chordates and lead from the pharyngeal cavity to the outside. ...
V Platyhelminthes and Nematoda PPT
... • Largest group of acoelomate (no body cavity) worms • Flatworms with middle tissue layer- mesoderm • Tissues organized into organs • Bilaterally symmetrical and flat • Cells lie close to exterior enabling efficient diffusion of oxygen and carbon dioxide • Highly branched gastrovascular cavity runs ...
... • Largest group of acoelomate (no body cavity) worms • Flatworms with middle tissue layer- mesoderm • Tissues organized into organs • Bilaterally symmetrical and flat • Cells lie close to exterior enabling efficient diffusion of oxygen and carbon dioxide • Highly branched gastrovascular cavity runs ...
Phylum Rotifera and Nematoda
... Have a complete digestive tract: a digestive tube with a separate mouth and anus. Covered by a tough, transparent cuticle—the exoskeleton of an arthropod, consisting of layers of protein and chitin. The muscles of nematodes are all longitudinal, and their contraction produces a thrashing motion. Thi ...
... Have a complete digestive tract: a digestive tube with a separate mouth and anus. Covered by a tough, transparent cuticle—the exoskeleton of an arthropod, consisting of layers of protein and chitin. The muscles of nematodes are all longitudinal, and their contraction produces a thrashing motion. Thi ...
Section 27–1 Flatworms
... 4. Why are flatworms known as acoelomates? No coelom forms between the tissues of ...
... 4. Why are flatworms known as acoelomates? No coelom forms between the tissues of ...
Lecture 14. Chiroptera II
... additional airfoil rather than as a prey-capture device. Limb proportions and retention of claws on all digits indicate that the new bat may have been an agile climber that employed quadrupedal locomotion and under-branch hanging behaviour.” ...
... additional airfoil rather than as a prey-capture device. Limb proportions and retention of claws on all digits indicate that the new bat may have been an agile climber that employed quadrupedal locomotion and under-branch hanging behaviour.” ...
Animals may be characterized by the presence of a coelom
... and the lining of the digestive tract, as well as to the lining of the trachea, bronchi, and lungs of the respiratory tract. The ectoderm develops into the outer epithelial covering of the body surface and the central nervous system. The mesoderm, the third germ layer forming between the endoderm an ...
... and the lining of the digestive tract, as well as to the lining of the trachea, bronchi, and lungs of the respiratory tract. The ectoderm develops into the outer epithelial covering of the body surface and the central nervous system. The mesoderm, the third germ layer forming between the endoderm an ...
Invertebrate Phyla
... Basic Characteristics • Bilateral Symmetry • Herbivores, carnivores, and omnivores • Aquatic and Terrestrial, VERY diverse habitats • Motile, using well-developed groups of muscles • Sexual Reproduction(internal and external fertilization) • Open Circulatory System ...
... Basic Characteristics • Bilateral Symmetry • Herbivores, carnivores, and omnivores • Aquatic and Terrestrial, VERY diverse habitats • Motile, using well-developed groups of muscles • Sexual Reproduction(internal and external fertilization) • Open Circulatory System ...
Amphibians and Reptiles - Vernon Hills High School
... Have large lungs for gas exchange Lunges divided into chambers Alveoli- small sacs that are created by the folding of ...
... Have large lungs for gas exchange Lunges divided into chambers Alveoli- small sacs that are created by the folding of ...
Chapter 29 PowerPoint
... Parasitic flatworms are flukes (trematodes) and tapeworms (cestodes) Well-developed nerves and gastrovascular cavity are unnecessary ...
... Parasitic flatworms are flukes (trematodes) and tapeworms (cestodes) Well-developed nerves and gastrovascular cavity are unnecessary ...
Biol 212 Zoology Lab 06: Phylum Annelida (10
... of annelids is a true coelom, but is a schizocoel, formed from a split in the mesoderm. Most annelids are characterized by metamerism, or the serial repetition of body segments, although some groups now classified with the annelids do not exhibit this. Each body segment hosts a pair of excretory org ...
... of annelids is a true coelom, but is a schizocoel, formed from a split in the mesoderm. Most annelids are characterized by metamerism, or the serial repetition of body segments, although some groups now classified with the annelids do not exhibit this. Each body segment hosts a pair of excretory org ...
Proifera
... A coelom is a fluid filled body cavity that is usually in the middle germ layer or mesoderm. The coelom allows the internal organs to develop independently of the ...
... A coelom is a fluid filled body cavity that is usually in the middle germ layer or mesoderm. The coelom allows the internal organs to develop independently of the ...
Diversity and Life History of Caecilians (Gymnophiona)
... • Enormous gills of larvae developing in oviducts may be used for gas exchange. • Courtship is not well known ...
... • Enormous gills of larvae developing in oviducts may be used for gas exchange. • Courtship is not well known ...
Sponges
... • Adult sponges are sessile – remain attached to one place • Sponges can’t make their own food • About 15,000 species of sponges identified ...
... • Adult sponges are sessile – remain attached to one place • Sponges can’t make their own food • About 15,000 species of sponges identified ...
Biology 320 Invertebrate Zoology Fall 2005 Chapter 7
... on tentacles, and move to mouth Photosynthate - may posses two sets of tentacles: false for photosynthesizing (exposed during day) and true (exposed during night) ...
... on tentacles, and move to mouth Photosynthate - may posses two sets of tentacles: false for photosynthesizing (exposed during day) and true (exposed during night) ...
Centipedes and Millipedes
... covered by a sticky substance. A few species give birth to living young. Centipedes are predaceous with many species feeding on other arthropods, such as insects. Their modified pair of legs, or claws, is directly under the head, allowing prey to be injected with venom. Most centipedes can only bite ...
... covered by a sticky substance. A few species give birth to living young. Centipedes are predaceous with many species feeding on other arthropods, such as insects. Their modified pair of legs, or claws, is directly under the head, allowing prey to be injected with venom. Most centipedes can only bite ...
Study_Guide_Exam 1_2015
... the digestive system (including odontophore structure and its distribution among the 7 classes); nervous system- nerve cords, paired ganglia and the portions of the body they each innervate; structure and function of a metanephridium (how does it differ from a protonephridium?); respiration and basi ...
... the digestive system (including odontophore structure and its distribution among the 7 classes); nervous system- nerve cords, paired ganglia and the portions of the body they each innervate; structure and function of a metanephridium (how does it differ from a protonephridium?); respiration and basi ...
BSC I ZOOLOGY PRACTICAL
... 2. For the first time in the animal kingdom, the head region, definite organ systems like digestive, excretory, nervous and reproductive system is getting formed. Digestive system is incomplete due to absence of anus. 3. Ingestion through mouth or through general body surface. 4. Excretory system co ...
... 2. For the first time in the animal kingdom, the head region, definite organ systems like digestive, excretory, nervous and reproductive system is getting formed. Digestive system is incomplete due to absence of anus. 3. Ingestion through mouth or through general body surface. 4. Excretory system co ...
Unit 5 Objectives
... 19) Describe the stemlike and leaflike structures that occur in mosses. Cut and paste an online labeled diagram of the life cycle of a bryophyte. Label the gametophyte and sporophyte stages and the locations of gamete production, fertilization, and spore production. Describe the structure and altern ...
... 19) Describe the stemlike and leaflike structures that occur in mosses. Cut and paste an online labeled diagram of the life cycle of a bryophyte. Label the gametophyte and sporophyte stages and the locations of gamete production, fertilization, and spore production. Describe the structure and altern ...
Insect physiology
Insect physiology includes the physiology and biochemistry of insect organ systems.Although diverse, insects are quite indifferent in overall design, internally and externally. The insect is made up of three main body regions (tagmata), the head, thorax and abdomen.The head comprises six fused segments with compound eyes, ocelli, antennae and mouthparts, which differ according to the insect’s particular diet, e.g. grinding, sucking, lapping and chewing. The thorax is made up of three segments: the pro, meso and meta thorax, each supporting a pair of legs which may also differ, depending on function, e.g. jumping, digging, swimming and running. Usually the middle and the last segment of the thorax have paired wings. The abdomen generally comprises eleven segments and contains the digestive and reproductive organs.A general overview of the internal structure and physiology of the insect is presented, including digestive, circulatory, respiratory, muscular, endocrine and nervous systems, as well as sensory organs, temperature control, flight and molting.