The Human Body: Anatomical Regions, Directions
... • Dorsal cavity protects the nervous system, and is divided into two subdivisions – Cranial cavity is within the skull and encases the brain – Vertebral cavity runs within the vertebral column and encases the spinal cord • Ventral cavity houses the internal organs (viscera), and is divided into two ...
... • Dorsal cavity protects the nervous system, and is divided into two subdivisions – Cranial cavity is within the skull and encases the brain – Vertebral cavity runs within the vertebral column and encases the spinal cord • Ventral cavity houses the internal organs (viscera), and is divided into two ...
BLOOD
... 5. An RBC is exposed to severe physical stresses. A single round trip of the circulatory system usually takes less than 1 minute. 6. Because of all this stress a single RBC’s has a life of about 120 days. ...
... 5. An RBC is exposed to severe physical stresses. A single round trip of the circulatory system usually takes less than 1 minute. 6. Because of all this stress a single RBC’s has a life of about 120 days. ...
bacteria - CNR WEB SITE
... a) Bacillus (plu. bacilli): These are small rods which may be flagellated or non-flagellated. The flagella may be present at one end, on both ends or all over the body. This number may also vary from one to many. b) Coccus (plu. cocci): These are spherical cells which exist singly or in groups of tw ...
... a) Bacillus (plu. bacilli): These are small rods which may be flagellated or non-flagellated. The flagella may be present at one end, on both ends or all over the body. This number may also vary from one to many. b) Coccus (plu. cocci): These are spherical cells which exist singly or in groups of tw ...
EXAM 2 REVIEW
... 63. True or False: Vertebrates are the second largest group or organisms, behind arthropods. False (they are only 5% of all organisms!) 64. What distinguishes vertebrates from the rest of the chordates? Distinct cephalization, vertebral column that encloses the nerve chord (has the function of the n ...
... 63. True or False: Vertebrates are the second largest group or organisms, behind arthropods. False (they are only 5% of all organisms!) 64. What distinguishes vertebrates from the rest of the chordates? Distinct cephalization, vertebral column that encloses the nerve chord (has the function of the n ...
Animal Primary Tissues
... By the end of this section, you will be able to: • Describe epithelial tissues • Discuss the dierent types of connective tissues in animals • Describe three types of muscle tissues • Describe nervous tissue The tissues of multicellular, complex animals are four primary types: epithelial, connective ...
... By the end of this section, you will be able to: • Describe epithelial tissues • Discuss the dierent types of connective tissues in animals • Describe three types of muscle tissues • Describe nervous tissue The tissues of multicellular, complex animals are four primary types: epithelial, connective ...
GI Physiology I: Introduction & Motility Mechanisms
... GI Function • Take relatively large, solids or gels, and digest them into smaller molecules that can be absorbed as nutrients, while still serving as a barrier to toxins, bacteria, parasites, etc. ...
... GI Function • Take relatively large, solids or gels, and digest them into smaller molecules that can be absorbed as nutrients, while still serving as a barrier to toxins, bacteria, parasites, etc. ...
Histology Presentation
... • Blood is a fluid connective tissue composed of cells called formed elements. – erythrocytes (red blood cells) – leukocytes (white blood cells) ...
... • Blood is a fluid connective tissue composed of cells called formed elements. – erythrocytes (red blood cells) – leukocytes (white blood cells) ...
5126 SCIENCE (CHEMISTRY AND BIOLOGY) for the guidance of teachers
... (a) pollen from anther (1) lands on/is transferred to stigma (1) pollen grows tube which passes into ovary (1) male nucleus travels down pollen tube (1) and combines with nucleus of egg cell/ovum (1) ...
... (a) pollen from anther (1) lands on/is transferred to stigma (1) pollen grows tube which passes into ovary (1) male nucleus travels down pollen tube (1) and combines with nucleus of egg cell/ovum (1) ...
Function Organ/ Main parts
... *Respiratory system removes carbon dioxide gas through mouth and nose *Circulatory system transports wastes away from cells *Integumentary releases water and salts through sweating *Excretory/Urinary system removes liquid waste through the kidneys *Digestive System removes solid waste through rectum ...
... *Respiratory system removes carbon dioxide gas through mouth and nose *Circulatory system transports wastes away from cells *Integumentary releases water and salts through sweating *Excretory/Urinary system removes liquid waste through the kidneys *Digestive System removes solid waste through rectum ...
The histology of respiratory system
... • Type I cells cover 97% of the alveolar surface . • Organelles such as the ER, Golgi apparatus, and mitochondria are grouped around the nucleus, leaving large areas of cytoplasm virtually free of organelles and reducing the thickness of the blood-air barrier. • The cytoplasm in the thin portion con ...
... • Type I cells cover 97% of the alveolar surface . • Organelles such as the ER, Golgi apparatus, and mitochondria are grouped around the nucleus, leaving large areas of cytoplasm virtually free of organelles and reducing the thickness of the blood-air barrier. • The cytoplasm in the thin portion con ...
Solutions for all Natural Sciences Grade 9 Learner`s Book
... topic’ lists the content to be covered in the topic. There is also a section called ‘Let’s talk about ...’ which gives you an opportunity to start thinking about new things you will learn about in the topic. Units and lessons: Each topic is divided into units that are broken up into lessons. A lesso ...
... topic’ lists the content to be covered in the topic. There is also a section called ‘Let’s talk about ...’ which gives you an opportunity to start thinking about new things you will learn about in the topic. Units and lessons: Each topic is divided into units that are broken up into lessons. A lesso ...
013368718X_CH20_313-324.indd
... Bacteria or domain Archaea. They can be surrounded by a cell wall, which contains peptidoglycan. Inside the cell wall is a cell membrane surrounding the cytoplasm. Archaea look similar to bacteria, but are genetically closer to eukaryotes. Archaea lack peptidoglycan and have different membrane lipid ...
... Bacteria or domain Archaea. They can be surrounded by a cell wall, which contains peptidoglycan. Inside the cell wall is a cell membrane surrounding the cytoplasm. Archaea look similar to bacteria, but are genetically closer to eukaryotes. Archaea lack peptidoglycan and have different membrane lipid ...
What are atoms and molecules?
... What are atoms and molecules? • All cells (and all matter) are made up of atoms and molecules. • An element is a substance that cannot be broken down into a simpler substance. • The smallest unit of an element that maintains the properties of that element is called an atom. ...
... What are atoms and molecules? • All cells (and all matter) are made up of atoms and molecules. • An element is a substance that cannot be broken down into a simpler substance. • The smallest unit of an element that maintains the properties of that element is called an atom. ...
Epithelium Lecture
... a space within a tubular structure such as a blood vessel or intestine). – The layers provide more protection than a single ...
... a space within a tubular structure such as a blood vessel or intestine). – The layers provide more protection than a single ...
Topic 5 - GEOCITIES.ws
... HIV attacks helper T cells, which are part of the immune system that are important for the function of B lymphocytes. The virus enters the helper T cells and replicates there. The cells burst and release new viruses, these viruses infect other helper T cells and possibly other cells such as phagocyt ...
... HIV attacks helper T cells, which are part of the immune system that are important for the function of B lymphocytes. The virus enters the helper T cells and replicates there. The cells burst and release new viruses, these viruses infect other helper T cells and possibly other cells such as phagocyt ...
Phylum Platyhelminthes - Flatworms Dorsoventrally flattened bodies
... Most are hermaphroditic with internal fertilization and separate ovaries and testes fertilized eggs deposited in cocoons, hatch into miniature adults Can reproduce asexually by fragmentation and regeneration No circulatory system, food and oxygen diffuse to tissues Excretory system is simple “flame ...
... Most are hermaphroditic with internal fertilization and separate ovaries and testes fertilized eggs deposited in cocoons, hatch into miniature adults Can reproduce asexually by fragmentation and regeneration No circulatory system, food and oxygen diffuse to tissues Excretory system is simple “flame ...
Structural Organization in Animals
... associated with the hair follicles. Smooth muscles exists as a sheet or bundle of fibers that are intimately connected by junctions that allow ions to flow freely. When one portion of smooth muscle is stimulated the action potential spreads to all other fibers. Most of the same contractile proteins ...
... associated with the hair follicles. Smooth muscles exists as a sheet or bundle of fibers that are intimately connected by junctions that allow ions to flow freely. When one portion of smooth muscle is stimulated the action potential spreads to all other fibers. Most of the same contractile proteins ...
nitrogen bases
... • (Any one with any other one) • The homologous chromosomes can be on the left or right of the midline. • The combination of chromosomes on the left will be very different than the combination on the right which results in haploid cells at the end of Meiosis that are very ...
... • (Any one with any other one) • The homologous chromosomes can be on the left or right of the midline. • The combination of chromosomes on the left will be very different than the combination on the right which results in haploid cells at the end of Meiosis that are very ...
Phylum Platyhelminthes - Flatworms Dorsoventrally flattened bodies
... Most are hermaphroditic with internal fertilization and separate ovaries and testes fertilized eggs deposited in cocoons, hatch into miniature adults Can reproduce asexually by fragmentation and regeneration No circulatory system, food and oxygen diffuse to tissues Excretory system is simple “flame ...
... Most are hermaphroditic with internal fertilization and separate ovaries and testes fertilized eggs deposited in cocoons, hatch into miniature adults Can reproduce asexually by fragmentation and regeneration No circulatory system, food and oxygen diffuse to tissues Excretory system is simple “flame ...
Biology YLP 1415 - Revere Public Schools
... 5.2 Describe species as reproductively distinct groups of organisms. Recognize that species are further classified into a hierarchical taxonomic systems (kingdom, phylum, class, order, family, genus, species) based on morphological, behavioral, and molecular similarities. Describe the role that geog ...
... 5.2 Describe species as reproductively distinct groups of organisms. Recognize that species are further classified into a hierarchical taxonomic systems (kingdom, phylum, class, order, family, genus, species) based on morphological, behavioral, and molecular similarities. Describe the role that geog ...
Nutritional Needs Name__________________________________
... 10. Fatty acids that have as many hydrogen atoms as they can hold are called _______________ fatty acids. 11. Fatty acids that are missing one hydrogen atom are called ______________ fatty acids. 12. Fatty acids that are missing two or more hydrogen atoms are called ______________ fatty acids. 13. U ...
... 10. Fatty acids that have as many hydrogen atoms as they can hold are called _______________ fatty acids. 11. Fatty acids that are missing one hydrogen atom are called ______________ fatty acids. 12. Fatty acids that are missing two or more hydrogen atoms are called ______________ fatty acids. 13. U ...
Chapter 5 notes a1 ct review
... reticular) and several kinds of cells (fibroblasts, macrophages, plasma cells, adipocytes, and mast cells) embedded in a semifluid ground substance. Location: Subcutaneous layer deep to skin; superficial region of dermis of skin; lamina propria of mucous membranes; and around blood vessels, nerves, ...
... reticular) and several kinds of cells (fibroblasts, macrophages, plasma cells, adipocytes, and mast cells) embedded in a semifluid ground substance. Location: Subcutaneous layer deep to skin; superficial region of dermis of skin; lamina propria of mucous membranes; and around blood vessels, nerves, ...
Developmental biology
Developmental biology is the study of the process by which animals and plants grow and develop, and is synonymous with ontogeny. In animals most development occurs in embryonic life, but it is also found in regeneration, asexual reproduction and metamorphosis, and in the growth and differentiation of stem cells in the adult organism. In plants, development occurs in embryos, during vegetative reproduction, and in the normal outgrowth of roots, shoots and flowers.Practical outcomes from the study of animal developmental biology have included in vitro fertilization, now widely used in fertility treatment, the understanding of risks from substances that can damage the fetus (teratogens), and the creation of various animal models for human disease which are useful in research. Developmental Biology has also help to generate modern stem cell biology which promises a number of important practical benefits for human health.Many of the processes of development are now well understood, and some major textbooks of the subject are