CHAPTER 44: THE NONCOELOMATE ANIMALS
... The phylum Platyhelminthes possess three distinct tissue layers and complete organ systems. They are bilaterally symmetrical, dorsoventrally flattened animals, hence the common name of the group, the flatworms. Their digestive system is similar to that of the cnidarians, but more highly branched. Th ...
... The phylum Platyhelminthes possess three distinct tissue layers and complete organ systems. They are bilaterally symmetrical, dorsoventrally flattened animals, hence the common name of the group, the flatworms. Their digestive system is similar to that of the cnidarians, but more highly branched. Th ...
KEY CHAPTER 23 OBJECTIVES: PREGNANCY, GROWTH, AND
... location on a gastrula diagram, and the adult body tissue(s) that each gives rise to. The Ectoderm is the layer of epithelial cells of the ICM that is closest to the amniotic cavity. a. considered the outermost germ layer b. will form the outer covering (i.e. epidermis and its derivatives) and nervo ...
... location on a gastrula diagram, and the adult body tissue(s) that each gives rise to. The Ectoderm is the layer of epithelial cells of the ICM that is closest to the amniotic cavity. a. considered the outermost germ layer b. will form the outer covering (i.e. epidermis and its derivatives) and nervo ...
Human Body Systems
... • The heart works by contracting and relaxing. • The heart has flapping valves that allow blood to flow in one direction. The flaps create a “lub-dup” sound. • A heart attack is caused by a blood vessel blocked by a clot. • The average person has about 5 liters of blood. • The body can replace blood ...
... • The heart works by contracting and relaxing. • The heart has flapping valves that allow blood to flow in one direction. The flaps create a “lub-dup” sound. • A heart attack is caused by a blood vessel blocked by a clot. • The average person has about 5 liters of blood. • The body can replace blood ...
red blood cells
... • If blood is delivering more oxygen than the tissues can use, the level of erythropoietin is reduced, and erythrocyte production slows. ...
... • If blood is delivering more oxygen than the tissues can use, the level of erythropoietin is reduced, and erythrocyte production slows. ...
video slide
... Most of the recipient eggs developed into tadpoles when the transplanted nuclei came from cells of an early embryo, which are relatively undifferentiated cells. But with nuclei from the fully differentiated intestinal cells of a tadpole, fewer than 2% of the eggs developed into normal tadpoles, and ...
... Most of the recipient eggs developed into tadpoles when the transplanted nuclei came from cells of an early embryo, which are relatively undifferentiated cells. But with nuclei from the fully differentiated intestinal cells of a tadpole, fewer than 2% of the eggs developed into normal tadpoles, and ...
CH 13 DAY 3 - Wythe County Schools Moodle Site
... The lungs are fairly large organs. They occupy the entire thoracic cavity except for the most central area, the mediastinum, which houses the heart (in its inferior pericardial cavity region), the great blood vessels, bronchi, esophagus, and other organs. The narrow superior portion of each lung, th ...
... The lungs are fairly large organs. They occupy the entire thoracic cavity except for the most central area, the mediastinum, which houses the heart (in its inferior pericardial cavity region), the great blood vessels, bronchi, esophagus, and other organs. The narrow superior portion of each lung, th ...
Body Organization and Structure
... like your intestines and stomach. They work automatically without you being aware of them. Smooth muscles are involved in many 'housekeeping' functions of the body. The muscular walls of your intestines contract to push food through your body. Muscles in your bladder wall contract to expel urine fro ...
... like your intestines and stomach. They work automatically without you being aware of them. Smooth muscles are involved in many 'housekeeping' functions of the body. The muscular walls of your intestines contract to push food through your body. Muscles in your bladder wall contract to expel urine fro ...
Cause. - Cleveland Clinic
... self-correct some mistakes than others, and children appear to have better capacity for self-correction than do adults. For example, the immune systems of children usually are eventually able to correct the juvenile rheumatoid arthritis mistake, the juvenile dermatomyositis mistake, and even the lup ...
... self-correct some mistakes than others, and children appear to have better capacity for self-correction than do adults. For example, the immune systems of children usually are eventually able to correct the juvenile rheumatoid arthritis mistake, the juvenile dermatomyositis mistake, and even the lup ...
HBS ECA
... the eye, is perforated by the pupil and is continuous peripherally with the ciliary body, has a deeply pigmented posterior surface which excludes the entrance of light except through the pupil and a colored anterior surface which determines the color of the eyes. Lens : A curved piece of glass or pl ...
... the eye, is perforated by the pupil and is continuous peripherally with the ciliary body, has a deeply pigmented posterior surface which excludes the entrance of light except through the pupil and a colored anterior surface which determines the color of the eyes. Lens : A curved piece of glass or pl ...
Digestive and Excretory Systems
... – The small intestines are lined with villi, finger-like projections that absorb all the nutrients into the blood stream. ...
... – The small intestines are lined with villi, finger-like projections that absorb all the nutrients into the blood stream. ...
12-AXIAL SKEL(1)..
... the mesodermal cells form the polymorphous embryonic connective tissue (MESENCHYME). The mesenchymal cells can migrate to different locations and are able to differentiate into : Fibroblasts, Chondroblasts and Osteoblasts. ...
... the mesodermal cells form the polymorphous embryonic connective tissue (MESENCHYME). The mesenchymal cells can migrate to different locations and are able to differentiate into : Fibroblasts, Chondroblasts and Osteoblasts. ...
Amphibian Chapter Review - local.brookings.k12.sd.us
... 1. Most have drastic change from larva to adult stage. 2. They have moist, thin skin and no scales. 3. Their feet (if present) are webbed and do not have claws. 4. Most use gills, skin, or lungs for respiration. 5. Their eggs do not have a shell or multi-cellular membrane. They are also ectothermic, ...
... 1. Most have drastic change from larva to adult stage. 2. They have moist, thin skin and no scales. 3. Their feet (if present) are webbed and do not have claws. 4. Most use gills, skin, or lungs for respiration. 5. Their eggs do not have a shell or multi-cellular membrane. They are also ectothermic, ...
document
... – first step in embryogenesis, the process that makes a singlecelled zygote into a multicellular embryo. – partitions the egg cytoplasm • The cells created by cleavage divisions are called blastomeres. • When cleavage is complete the embryo consists of a mass of blastomere cells called a blastula (i ...
... – first step in embryogenesis, the process that makes a singlecelled zygote into a multicellular embryo. – partitions the egg cytoplasm • The cells created by cleavage divisions are called blastomeres. • When cleavage is complete the embryo consists of a mass of blastomere cells called a blastula (i ...
Diversity – Eukarya – Kingdom Animalia
... structural protein - ECM • Store carbs as glycogen • Nervous tissue and muscle tissue – except sponges (porifera) • Usually reproduce sexually w/ dominant diploid stage – Flagellated sperm ...
... structural protein - ECM • Store carbs as glycogen • Nervous tissue and muscle tissue – except sponges (porifera) • Usually reproduce sexually w/ dominant diploid stage – Flagellated sperm ...
Flatworms, roundworms and rotifers
... • One species found in the North Atlantic was introduced accidentally to the Black sea (via ballast tank flushing) where they became the dominant predator of plankton. • Caused the collapse of the anchovy fisheries. • Biomass was estimated to be 1,000,000 tons! • Accidental introduction of a predato ...
... • One species found in the North Atlantic was introduced accidentally to the Black sea (via ballast tank flushing) where they became the dominant predator of plankton. • Caused the collapse of the anchovy fisheries. • Biomass was estimated to be 1,000,000 tons! • Accidental introduction of a predato ...
Other Invertebrate Taxa
... spirally cleaving eggs, spindles become obliquely oriented and new cells are therefore given off slightly displaced in comparison with the mother cell. Radial cleavage is present, for example, in Porifera, Cnidaria, Deuterostomia, Tentaculata, and some other taxa, while spiral cleavage is hypothesiz ...
... spirally cleaving eggs, spindles become obliquely oriented and new cells are therefore given off slightly displaced in comparison with the mother cell. Radial cleavage is present, for example, in Porifera, Cnidaria, Deuterostomia, Tentaculata, and some other taxa, while spiral cleavage is hypothesiz ...
Ch 17 BS and CH 7 MT
... Pneumothorax: accumulation of air or gas in the pleural space causing the lung to collapse (stab wound, perforation in the pleura surrounding the lung, etc.) Pleural Effusion: abnormal escape of fluid into the pleural cavity that prevents the lung from fully expanding Empyema: accumulation of pus in ...
... Pneumothorax: accumulation of air or gas in the pleural space causing the lung to collapse (stab wound, perforation in the pleura surrounding the lung, etc.) Pleural Effusion: abnormal escape of fluid into the pleural cavity that prevents the lung from fully expanding Empyema: accumulation of pus in ...
1_Early Embryology - Temple University Sites
... called the ectoderm, the middle layer called the mesoderm and notochord (purple cells in the midline), and the ventral layer called the endoderm. ...
... called the ectoderm, the middle layer called the mesoderm and notochord (purple cells in the midline), and the ventral layer called the endoderm. ...
First Aid Manual
... Elevating the injured limb helps drain fluid away from the injury and thus reduce swelling. The injured limb is elevated above heart level for the first 2 days. ...
... Elevating the injured limb helps drain fluid away from the injury and thus reduce swelling. The injured limb is elevated above heart level for the first 2 days. ...
30.4 Excretory System
... moved through the tubules, and down the loop of Henle. • As the filtrate moves through the loop, salts and water are moved out of the tubule and back into the veins and arteries. ...
... moved through the tubules, and down the loop of Henle. • As the filtrate moves through the loop, salts and water are moved out of the tubule and back into the veins and arteries. ...
Chapt 36 Plant Transport
... CO2 activates proton pumps moving H+ ion our of Guard Cells and allowing K+ to transport from the epidermal cells into the guard cells ...
... CO2 activates proton pumps moving H+ ion our of Guard Cells and allowing K+ to transport from the epidermal cells into the guard cells ...
Development
... reaches several hundred cells, gastrulation occurs In this stage, the cells on one side of the blastula push in and form a two-layered embryo called the gastrula ...
... reaches several hundred cells, gastrulation occurs In this stage, the cells on one side of the blastula push in and form a two-layered embryo called the gastrula ...