INTRODUCTION OF RESPIRATORY SYSTEM
... bronchioles to 11,800 cm2 in the alveoli; about are in contact with capillaries7000cm2 ) ...
... bronchioles to 11,800 cm2 in the alveoli; about are in contact with capillaries7000cm2 ) ...
Chapter 2 - SD43 Teacher Sites
... inside and on the average human body. There are over 500 different types of bacteria in your mouth. Most of these are harmless but one species secretes plaque that builds up on your teeth. ...
... inside and on the average human body. There are over 500 different types of bacteria in your mouth. Most of these are harmless but one species secretes plaque that builds up on your teeth. ...
worm notes
... 2. Worms have bilateral symmetry 2. Worms have 3 cell layers (not 2) 3. inner cells, middle cells, outer cells 2. Worms have Organs (structures with different cells for a common purpose) ...
... 2. Worms have bilateral symmetry 2. Worms have 3 cell layers (not 2) 3. inner cells, middle cells, outer cells 2. Worms have Organs (structures with different cells for a common purpose) ...
Local.brookings.k12.sd.us
... (A) Cleavage, blastula formation, gastrulation (B) Cleavage, gastrulation, blastula formation (C) Blastula formation, gastrulation, cleavage (D) Blastula formation, cleavage, gastrulation (E) Gastrulation, cleavage, blastula formation AP EXAM 1990 ...
... (A) Cleavage, blastula formation, gastrulation (B) Cleavage, gastrulation, blastula formation (C) Blastula formation, gastrulation, cleavage (D) Blastula formation, cleavage, gastrulation (E) Gastrulation, cleavage, blastula formation AP EXAM 1990 ...
Phylum Cnidaria: Hydroids, jellyfish, anemones, corals.
... Medusae 2. have a shorter longitudinal axis a. mouth often with oral arms. 3. body wall also diploblastic a. highly thickened meosglea - forms bell. ...
... Medusae 2. have a shorter longitudinal axis a. mouth often with oral arms. 3. body wall also diploblastic a. highly thickened meosglea - forms bell. ...
Document
... Leaf basics • Above ground plant organ specialized for photosynthesis • Leaves are the site where transpiration and guttation takes place • Leaves can store food and water, in other plants they can serve different purposes ...
... Leaf basics • Above ground plant organ specialized for photosynthesis • Leaves are the site where transpiration and guttation takes place • Leaves can store food and water, in other plants they can serve different purposes ...
Organisms
... Categories of Information • Mode of Transport – How they move materials through their bodies? • Excretion – How do they remove wastes? • Respiration – How do they exchange gases? • Regulation – How do they maintain homeostasis? • Mode of Nutrition – How do they get and digest ...
... Categories of Information • Mode of Transport – How they move materials through their bodies? • Excretion – How do they remove wastes? • Respiration – How do they exchange gases? • Regulation – How do they maintain homeostasis? • Mode of Nutrition – How do they get and digest ...
Development of the Gastrointestinal Tract
... Re-arrangement of the paired vitelline veins gives rise to the portal vein In the septum transversum - Parts of the right and left vitelline veins and the ventral anastomosis give rise to the right and left branches of the portal vein Outside the septum transversum The portal vein develops from par ...
... Re-arrangement of the paired vitelline veins gives rise to the portal vein In the septum transversum - Parts of the right and left vitelline veins and the ventral anastomosis give rise to the right and left branches of the portal vein Outside the septum transversum The portal vein develops from par ...
Protein Metabolism and Storage with Special Consideration of the
... lysosome in the cell. These cell organelles contain up to 40 different enzymes, through which e.g. nucleic acids, proteins, glycogen, mucopolysaccharides and lipids can be broken down. The body’s own, as well as foreign materials can be broken down or rebuilt in the lysosomes in this way. Even damag ...
... lysosome in the cell. These cell organelles contain up to 40 different enzymes, through which e.g. nucleic acids, proteins, glycogen, mucopolysaccharides and lipids can be broken down. The body’s own, as well as foreign materials can be broken down or rebuilt in the lysosomes in this way. Even damag ...
Human body
... heat, pain, and pressure. They altogether make up the integumentary system. Skin protects the body from microbes and other impurities, prevents the loss of body fluids, and regulates body temperature. Three layers of tissue make up the skin - the epidermis, the dermis, and the subcutis (subcutaneous ...
... heat, pain, and pressure. They altogether make up the integumentary system. Skin protects the body from microbes and other impurities, prevents the loss of body fluids, and regulates body temperature. Three layers of tissue make up the skin - the epidermis, the dermis, and the subcutis (subcutaneous ...
Chapter 8 Special Senses
... input from different kinds of cone cells—and then make many other comparisons as well. • The lightning-fast work of judging a color begins in the retina, which has three layers of cells. Signals from the red and green cones in the first layer are compared by specialized redgreen "opponent" cells in ...
... input from different kinds of cone cells—and then make many other comparisons as well. • The lightning-fast work of judging a color begins in the retina, which has three layers of cells. Signals from the red and green cones in the first layer are compared by specialized redgreen "opponent" cells in ...
Chapter 8 Special Senses
... input from different kinds of cone cells—and then make many other comparisons as well. • The lightning-fast work of judging a color begins in the retina, which has three layers of cells. Signals from the red and green cones in the first layer are compared by specialized redgreen "opponent" cells in ...
... input from different kinds of cone cells—and then make many other comparisons as well. • The lightning-fast work of judging a color begins in the retina, which has three layers of cells. Signals from the red and green cones in the first layer are compared by specialized redgreen "opponent" cells in ...
The primitive sex cords will be dissociated forming irregular cell
... The urinary system: (the kidney systems) These are three systems developing from the intermediate layer of the mesoderm, from anterior to posterior these systems are: 1.the pronephros: This is the most anterior system, its excretory units (called the nephrotomes) occurs and disappears in a craniocau ...
... The urinary system: (the kidney systems) These are three systems developing from the intermediate layer of the mesoderm, from anterior to posterior these systems are: 1.the pronephros: This is the most anterior system, its excretory units (called the nephrotomes) occurs and disappears in a craniocau ...
Living building blocks
... Red blood cells carry oxygen around the body. Their round shape helps them move easily through blood vessels. The nucleus in a red blood cell dies soon after the cell is made. Without a nucleus, red blood cells live for only a few weeks. The body keeps making new blood cells to replace those that ha ...
... Red blood cells carry oxygen around the body. Their round shape helps them move easily through blood vessels. The nucleus in a red blood cell dies soon after the cell is made. Without a nucleus, red blood cells live for only a few weeks. The body keeps making new blood cells to replace those that ha ...
ON THE DEVELOPMENT OF THE TUSSER, ANTHERAEA PERNYI
... compared to the primitive groove of higher vertebrate animals as it becomes a differentiation center of the later development. From the time of invagination the mere uniformly structured cell aggregation of the ventral plate gives rise at the floor of the groove to the polygonal shaped cell mass and ...
... compared to the primitive groove of higher vertebrate animals as it becomes a differentiation center of the later development. From the time of invagination the mere uniformly structured cell aggregation of the ventral plate gives rise at the floor of the groove to the polygonal shaped cell mass and ...
PowerPoint 6: Cnidaria 1
... Evolutionary relationships (briefly) Thought to have arisen relatively early in animal evolution—one of the longest fossil histories Key derived characters ...
... Evolutionary relationships (briefly) Thought to have arisen relatively early in animal evolution—one of the longest fossil histories Key derived characters ...
Exam question (5 marks)
... The diagram below shows the detailed structure of a small part of the mammalian lung. D ...
... The diagram below shows the detailed structure of a small part of the mammalian lung. D ...
Lecture #14 Date
... (cuticle)~ molting, jointed appendages; open circulatory system (hemolymph); extensive cephalization ...
... (cuticle)~ molting, jointed appendages; open circulatory system (hemolymph); extensive cephalization ...
Dissection of the Rat
... 1. The organs of the thoracic cavity are covered by various thin membranes. These lubricated surfaces allow the two sets of organs to move vigorously without wearing each other away. The heart is covered by the pericardium. ...
... 1. The organs of the thoracic cavity are covered by various thin membranes. These lubricated surfaces allow the two sets of organs to move vigorously without wearing each other away. The heart is covered by the pericardium. ...
Lecture #14 Date - Biology Junction
... (cuticle)~ molting, jointed appendages; open circulatory system (hemolymph); extensive cephalization ...
... (cuticle)~ molting, jointed appendages; open circulatory system (hemolymph); extensive cephalization ...
Digestive System
... atresia is temporary. Recanalization occurs by formation of vacuoles that coalesce to form the ultimate lumen. Persistent atresia (failure to re-canalize) or stenosis (narrow lumen) is a congenital anomaly that can occur at localized sites anywhere along the esophagus or intestines. Failure of th ...
... atresia is temporary. Recanalization occurs by formation of vacuoles that coalesce to form the ultimate lumen. Persistent atresia (failure to re-canalize) or stenosis (narrow lumen) is a congenital anomaly that can occur at localized sites anywhere along the esophagus or intestines. Failure of th ...
The Journey of the Red Blood Cell, by Sophia del Rio
... Imagining ourselves as a group of traveling red blood cells, we are about to embark on a journey through the heart, pointing out structures you need to know for the exam! Beginning on the posterior side of the heart, we drain through the inferior vena cava into the right atrium (RA). We see a ring w ...
... Imagining ourselves as a group of traveling red blood cells, we are about to embark on a journey through the heart, pointing out structures you need to know for the exam! Beginning on the posterior side of the heart, we drain through the inferior vena cava into the right atrium (RA). We see a ring w ...
Vertebrate Biology
... Chordates are bilaterally symmetrical deuterostomes with three germ layers Chordates have a segmented body, complete digestive tract and a well-developed coelom ...
... Chordates are bilaterally symmetrical deuterostomes with three germ layers Chordates have a segmented body, complete digestive tract and a well-developed coelom ...
Human embryogenesis
Human embryogenesis is the process of cell division and cellular differentiation of the embryo that occurs during the early stages of development. In biological terms, human development entails growth from a one celled zygote to an adult human being. Fertilisation occurs when the sperm cell successfully enters and fuses with an egg cell (ovum). The genetic material of the sperm and egg then combine to form a single cell called a zygote and the germinal stage of prenatal development commences. Embryogenesis covers the first eight weeks of development and at the beginning of the ninth week the embryo is termed a fetus.Human embryology is the study of this development during the first eight weeks after fertilisation. The normal period of gestation (pregnancy) is nine months or 38 weeks.The germinal stage, refers to the time from fertilization, through the development of the early embryo until implantation is completed in the uterus. The germinal stage takes around 10 days.During this stage, the zygote, which is defined as an embryo because it contains a full complement of genetic material, begins to divide, in a process called cleavage. A blastocyst is then formed and implanted in the uterus. Embryogenesis continues with the next stage of gastrulation when the three germ layers of the embryo form in a process called histogenesis, and the processes of neurulation and organogenesis follow. The embryo is referred to as a fetus in the later stages of prenatal development, usually taken to be at the beginning of the ninth week. In comparison to the embryo, the fetus has more recognizable external features, and a more complete set of developing organs. The entire process of embryogenesis involves coordinated spatial and temporal changes in gene expression, cell growth and cellular differentiation. A nearly identical process occurs in other species, especially among chordates.