N5 Multicellular Organisms Course Notes
... After fertilisation, a zygote (fertilised egg) is formed. The cell is DIPLOID A diploid cell has 2 sets of chromosomes (in humans this is 46 chromosomes). One set has come from the male parent and one set has come from the female parent. Every body cell has a copy of the chromosomes that was in the ...
... After fertilisation, a zygote (fertilised egg) is formed. The cell is DIPLOID A diploid cell has 2 sets of chromosomes (in humans this is 46 chromosomes). One set has come from the male parent and one set has come from the female parent. Every body cell has a copy of the chromosomes that was in the ...
Document
... Inner Ear The inner ear is composed of the bony labyrinth, an irregular, hollowedout cavity located within the petrous portion of the temporal bone, and the membranous labyrinth, which is suspended within the bony labyrinth. The bony labyrinth is separated from the membranous labyrinth by the peril ...
... Inner Ear The inner ear is composed of the bony labyrinth, an irregular, hollowedout cavity located within the petrous portion of the temporal bone, and the membranous labyrinth, which is suspended within the bony labyrinth. The bony labyrinth is separated from the membranous labyrinth by the peril ...
Language Arts 2 column notes - SJSEighthGradePortfolio1027
... Plants; the rigid cell wall cannot squeeze together in the same way that a cell membrane can. Instead a structure called cell plate forms across the middle of the cell. ...
... Plants; the rigid cell wall cannot squeeze together in the same way that a cell membrane can. Instead a structure called cell plate forms across the middle of the cell. ...
Phylum Cnidaria: Hydroids, jellyfish, anemones, corals.
... Cnidarian Morphology b . Tentaculate with radial symmetry around mouth. 1. Note that radial ...
... Cnidarian Morphology b . Tentaculate with radial symmetry around mouth. 1. Note that radial ...
Chapter 5: Homeostasis and regulatory mechanisms Key questions
... 29 Fetal haemoglobin has a higher affinity for oxygen than adult haemoglobin. If fetal haemoglobin had the same affinity for oxygen as adult haemoglobin, the fetal blood would not be able to take up enough oxygen from the mother’s blood for its needs. Higher oxygen affinity allows this to occur. 30 ...
... 29 Fetal haemoglobin has a higher affinity for oxygen than adult haemoglobin. If fetal haemoglobin had the same affinity for oxygen as adult haemoglobin, the fetal blood would not be able to take up enough oxygen from the mother’s blood for its needs. Higher oxygen affinity allows this to occur. 30 ...
Kingdom Animalia Review
... 1. What are the major characteristics that distinguish animals from plants? 2. State the three germ layers found in most animals and give an example of a tissue type or organ system that arises from each. 3. List the following terms in the correct developmental sequence: cleavage, embryo, zygote, ad ...
... 1. What are the major characteristics that distinguish animals from plants? 2. State the three germ layers found in most animals and give an example of a tissue type or organ system that arises from each. 3. List the following terms in the correct developmental sequence: cleavage, embryo, zygote, ad ...
File
... prokaryotes and consist of all bacteria and archeans, which are another group of microbes. Eukaryotic cells have a much more complex structure than prokaryotic cells. All Eukaryotic cells contain many different kinds of membrane bound structures called organelles suspended in the cytosol. These orga ...
... prokaryotes and consist of all bacteria and archeans, which are another group of microbes. Eukaryotic cells have a much more complex structure than prokaryotic cells. All Eukaryotic cells contain many different kinds of membrane bound structures called organelles suspended in the cytosol. These orga ...
AP Biology Unit 10 Animal Structure and Function
... The major histocompatibility complex, or MHC, is the mechanism by which the immune system is able to differentiate between self and nonself cells. The MHC is a collection of glycoproteins that exists on the membranes of all body cells. The proteins of a single individual are unique, originating from ...
... The major histocompatibility complex, or MHC, is the mechanism by which the immune system is able to differentiate between self and nonself cells. The MHC is a collection of glycoproteins that exists on the membranes of all body cells. The proteins of a single individual are unique, originating from ...
Circulatory System Ppt
... The circulatory system is responsible for the transport of water and dissolved materials throughout the body, including oxygen, carbon dioxide, nutrients, and waste. The circulatory system transports oxygen from the lungs and nutrients from the digestive tract to every cell in the body, allowing for ...
... The circulatory system is responsible for the transport of water and dissolved materials throughout the body, including oxygen, carbon dioxide, nutrients, and waste. The circulatory system transports oxygen from the lungs and nutrients from the digestive tract to every cell in the body, allowing for ...
Anatomy Test - Cobra Invitational ANSWERS
... 1. Which of the following is the correct sequence, going from simplest to most complex, in the levels of structural organization of the human body: A) chemical level, tissue level, cellular level, organ system level, organ level, organismal level B) cellular level, chemical level, tissue level, orga ...
... 1. Which of the following is the correct sequence, going from simplest to most complex, in the levels of structural organization of the human body: A) chemical level, tissue level, cellular level, organ system level, organ level, organismal level B) cellular level, chemical level, tissue level, orga ...
Invertebrate PowerPoint Notes
... a. flatworms: no body cavity (acoelomates) b. roundworms: body cavity partially lined with mesoderm (pseudocoelomates) c. other invertebrates: body cavity completely lined with mesoderm (coelomates) ...
... a. flatworms: no body cavity (acoelomates) b. roundworms: body cavity partially lined with mesoderm (pseudocoelomates) c. other invertebrates: body cavity completely lined with mesoderm (coelomates) ...
EMBRYOLOGY
... With proliferation of neuroepithelium and differentiation of cells in the neural tube, the architecture of the neural tube becomes layered. The layer closest to the lumen (central canal) remains epithelial and is called the ventricular zone. Ultimately, this zone becomes the ependyma lining the cent ...
... With proliferation of neuroepithelium and differentiation of cells in the neural tube, the architecture of the neural tube becomes layered. The layer closest to the lumen (central canal) remains epithelial and is called the ventricular zone. Ultimately, this zone becomes the ependyma lining the cent ...
The Genetic Basis of Development - Bremen High School District 228
... The adult body has various kinds of stem cells, which replace nonreproducing specialized cells. For example, stem cells in the bone marrow give rise to all the different kinds of blood cells. A recent surprising discovery is the presence of stem cells in the brain that continues to produce cer ...
... The adult body has various kinds of stem cells, which replace nonreproducing specialized cells. For example, stem cells in the bone marrow give rise to all the different kinds of blood cells. A recent surprising discovery is the presence of stem cells in the brain that continues to produce cer ...
Wizard Test Maker
... (2) the maintenance of a constant body temperature (3) cell division that is involved in normal growth (4) a rapid rise in the number of red blood cells 5016 Organisms undergo constant chemical changes as they maintain an internal balance known as (1) interdependence (3) synthesis (4) recombination ...
... (2) the maintenance of a constant body temperature (3) cell division that is involved in normal growth (4) a rapid rise in the number of red blood cells 5016 Organisms undergo constant chemical changes as they maintain an internal balance known as (1) interdependence (3) synthesis (4) recombination ...
Animal embryology and development
... Swept into one of the uterine tubes – fertilization usually occurs here. The oocyte or zygote (if it’s fertilized) is swept down to the uterus. The endometrium lining of the uterus is shed in menstruation, if there is no fertilization. If fertilization occurred, implantation occurs here. The cer vix ...
... Swept into one of the uterine tubes – fertilization usually occurs here. The oocyte or zygote (if it’s fertilized) is swept down to the uterus. The endometrium lining of the uterus is shed in menstruation, if there is no fertilization. If fertilization occurred, implantation occurs here. The cer vix ...
Hearing, vestibular, taste and smell
... – amplification of the waves of specific f – in animals – mobile pinna ...
... – amplification of the waves of specific f – in animals – mobile pinna ...
Introduction to the Cardiovascular System
... Are cell surface proteins that identify cells to immune system Normal cells are ignored and foreign cells attacked Blood types ...
... Are cell surface proteins that identify cells to immune system Normal cells are ignored and foreign cells attacked Blood types ...
Chapter 43.
... attack pathogens, but don’t “remember” for next time leukocytes phagocytic white blood cells macrophages, neutrophils, natural killer cells ...
... attack pathogens, but don’t “remember” for next time leukocytes phagocytic white blood cells macrophages, neutrophils, natural killer cells ...
Female Reproductive System
... (B) The location of the testes within the scrotum aids in the production of sperm needed for zygote formation. (C) Mitotic cell division in involved in the formation of the testes and scrotum, and meiosis is involved in the production of sperm, which is involved in the formation of a zygote. (D) For ...
... (B) The location of the testes within the scrotum aids in the production of sperm needed for zygote formation. (C) Mitotic cell division in involved in the formation of the testes and scrotum, and meiosis is involved in the production of sperm, which is involved in the formation of a zygote. (D) For ...
animals classification
... • Digest food within the body • Most of them have embryonic layers (these layers form tissues, organs, systems) • Cells are connected to eachother by extracellular proteins (connective tissue) • Most animals have diploid life cycle • Most animals have muscle tissue for movement, nerve for impulses. ...
... • Digest food within the body • Most of them have embryonic layers (these layers form tissues, organs, systems) • Cells are connected to eachother by extracellular proteins (connective tissue) • Most animals have diploid life cycle • Most animals have muscle tissue for movement, nerve for impulses. ...
Lymphatic/Immune - Pasadena City College
... head and thorax; empties into R subclavian vein thoracic duct - larger and longer, begins as a prominent sac in abdomen called the cisterna chyli; receives lymph from below diaphragm, L arm, L side of head, neck and thorax; empties into L subclavian vein ...
... head and thorax; empties into R subclavian vein thoracic duct - larger and longer, begins as a prominent sac in abdomen called the cisterna chyli; receives lymph from below diaphragm, L arm, L side of head, neck and thorax; empties into L subclavian vein ...
ImmunitySystemAP
... attack pathogens, but don’t “remember” for next time leukocytes phagocytic white blood cells macrophages, neutrophils, natural killer cells ...
... attack pathogens, but don’t “remember” for next time leukocytes phagocytic white blood cells macrophages, neutrophils, natural killer cells ...
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.