Phylogeny: systems of putting organisms into
... Protista: -single-cell organisms -Eukaryotes Porifera: EX: sponge -not quite multi-cellular -has pores to absorb nutrients (currents bring nutrients and expels waste) -no true tissues ...
... Protista: -single-cell organisms -Eukaryotes Porifera: EX: sponge -not quite multi-cellular -has pores to absorb nutrients (currents bring nutrients and expels waste) -no true tissues ...
Technologies at the Molecular Imaging Center A short and
... 3D‐representations, giving more information throughout the sample than a regular flat image. The confocal has three essential parts that is the crucial in this technology; lasers for precise excitation of the fluorescent molecules, a scanning unit for scanning the laser light over the sample and a ...
... 3D‐representations, giving more information throughout the sample than a regular flat image. The confocal has three essential parts that is the crucial in this technology; lasers for precise excitation of the fluorescent molecules, a scanning unit for scanning the laser light over the sample and a ...
File - Biology with Ms. Murillo
... ● stomach – food is combined with acids and enzymes (chemical digestion); the stomach muscles squeeze and contract (mechanical digestion) o chyme – partially digested food o cardiac sphincter – ring of muscle at top of stomach to keep food inside o pyloric sphincter – ring of muscle at bottom of sto ...
... ● stomach – food is combined with acids and enzymes (chemical digestion); the stomach muscles squeeze and contract (mechanical digestion) o chyme – partially digested food o cardiac sphincter – ring of muscle at top of stomach to keep food inside o pyloric sphincter – ring of muscle at bottom of sto ...
MAINTENANCE INTRODUCTION OBJECTIVES ALIMENTARY
... which in turn branch into tinier tracheoles. This branching gets the tracheoles within a few cell diameters of each cell. This is important because each cell needs to have oxygen available on demand. When cells need more oxygen, the spiracles open and air rushes in. ...
... which in turn branch into tinier tracheoles. This branching gets the tracheoles within a few cell diameters of each cell. This is important because each cell needs to have oxygen available on demand. When cells need more oxygen, the spiracles open and air rushes in. ...
Cnidarian Power Point
... • All cnidarians have a basic radial symmetry and possess only 2 layers of living tissues. • 2 tissue layers: ectoderm and endoderm • Contain a mesoglea • Some possess an exoskeleton (for protection) made up of CaCO3 (e.g. corals) ...
... • All cnidarians have a basic radial symmetry and possess only 2 layers of living tissues. • 2 tissue layers: ectoderm and endoderm • Contain a mesoglea • Some possess an exoskeleton (for protection) made up of CaCO3 (e.g. corals) ...
Special Senses - El Camino College
... 27. Taste maps of tongue are not true. 28. The Eye and Vision: The eye is formed of eyeball and placed in bony socket – Orbit and is padded with fat. 6 extrinsic muscles rotate eyeball and lacrimal gland is also present in orbit. 29. The lacrimal apparatus: lacrimal glands secrete tears that protect ...
... 27. Taste maps of tongue are not true. 28. The Eye and Vision: The eye is formed of eyeball and placed in bony socket – Orbit and is padded with fat. 6 extrinsic muscles rotate eyeball and lacrimal gland is also present in orbit. 29. The lacrimal apparatus: lacrimal glands secrete tears that protect ...
File
... 11th oreo starting from the mouth) • A small tube connects the testes and passes down to section 14. ...
... 11th oreo starting from the mouth) • A small tube connects the testes and passes down to section 14. ...
Chapter 22 Respiratory System
... • 3 main functions: • Provides an open airway • Acts as a switching mechanism for food and air. • Sound production ...
... • 3 main functions: • Provides an open airway • Acts as a switching mechanism for food and air. • Sound production ...
Chapter 27 Introduction to Animals Chapter 27 Section 1
... One set fro m the mother and one set from the father. Advantage = new gene combinat ions which give rise to variet y. 5. Sexual Reproduction Almost all animals reproduce sexually by producing gametes (sex cells). Our sex cells or gametes are eggs (female) and sperm (male). 6. Absence of cell wall Al ...
... One set fro m the mother and one set from the father. Advantage = new gene combinat ions which give rise to variet y. 5. Sexual Reproduction Almost all animals reproduce sexually by producing gametes (sex cells). Our sex cells or gametes are eggs (female) and sperm (male). 6. Absence of cell wall Al ...
Structure and - DANYAL`S NOTES AND RESOURCES
... (d)An organelle which contains the hereditary factors called genes (e) Helps to keep the cell turgid (f) Has ribosomes on it to synthesise protein (g) Provides support and shape to the cell (h) Receives organic molecules and packages them to form specific secretions ...
... (d)An organelle which contains the hereditary factors called genes (e) Helps to keep the cell turgid (f) Has ribosomes on it to synthesise protein (g) Provides support and shape to the cell (h) Receives organic molecules and packages them to form specific secretions ...
CP biology mitosis notes
... that stimulate cell division. If you are bleeding, some of your blood cells release a growth factor that help start the healing process. ...
... that stimulate cell division. If you are bleeding, some of your blood cells release a growth factor that help start the healing process. ...
Chapter 5: Blood and Circulation
... • If you take a sample of blood and spin it in a centrifuge very quickly it will separate into two layers. • The blood cells will go to the bottom and a light straw coloured liquid called plasma comes to the top. 55% plasma Centrifuge 45% blood cells ...
... • If you take a sample of blood and spin it in a centrifuge very quickly it will separate into two layers. • The blood cells will go to the bottom and a light straw coloured liquid called plasma comes to the top. 55% plasma Centrifuge 45% blood cells ...
UNIT 1
... surroundings. For example, when we are hot, we sweat and when we are cold we shiver. These are body responses to the temperature changes. Plants also respond by moving towards or away from the sunlight (phototropism). Reproduction is the way living things make more of themselves. It allows each kind ...
... surroundings. For example, when we are hot, we sweat and when we are cold we shiver. These are body responses to the temperature changes. Plants also respond by moving towards or away from the sunlight (phototropism). Reproduction is the way living things make more of themselves. It allows each kind ...
females
... •Meiosis II is completed when sperm penetrates plasma membrane of the egg –When Meiosis II is completed, secondary oocyte is now called ovum (egg) ...
... •Meiosis II is completed when sperm penetrates plasma membrane of the egg –When Meiosis II is completed, secondary oocyte is now called ovum (egg) ...
Kingdom Protista
... LEUCON (leuconoid)- most complex form, with many ostia and often many oscula. External pores connected to “flagellated chambers” lined with choanocytes. Chambers connect to excurrent canals and then out through oscula. These sponges are often “lump shaped,” as in the bath sponges. (see fig 12-5, pa ...
... LEUCON (leuconoid)- most complex form, with many ostia and often many oscula. External pores connected to “flagellated chambers” lined with choanocytes. Chambers connect to excurrent canals and then out through oscula. These sponges are often “lump shaped,” as in the bath sponges. (see fig 12-5, pa ...
32.4 - share1
... Formed in the red marrow of bones, esp. the ribs, vertebrae, breastbone, and pelvis Marrow has stem cells (remember those?) that can develop into any type of blood cell Red cell production is stimulated by a negative feedback mechanism that is sensitive to the amount of oxygen reaching the tissues v ...
... Formed in the red marrow of bones, esp. the ribs, vertebrae, breastbone, and pelvis Marrow has stem cells (remember those?) that can develop into any type of blood cell Red cell production is stimulated by a negative feedback mechanism that is sensitive to the amount of oxygen reaching the tissues v ...
Veterinary Developmental Anatomy Class Notes
... Mesoderm can transform from a mesenchyme to epithelioid and vice versa: The mesoderm that streams through the primitive streak is primary mesenchyme. Somatic, splanchnic, and somite mesoderm can be temporarily epithelioid. The temporary epithelioid transforms to a secondary mesenchyme which ultimate ...
... Mesoderm can transform from a mesenchyme to epithelioid and vice versa: The mesoderm that streams through the primitive streak is primary mesenchyme. Somatic, splanchnic, and somite mesoderm can be temporarily epithelioid. The temporary epithelioid transforms to a secondary mesenchyme which ultimate ...
Sample Chapter
... A tissue is a collection of similar type of cells. The cells are associated with some intercellular matrix (ground substance) and they are governed by some laws of growth and development to form tissue. These cells are adopted to perform same function or functions. • How are tissues classified? Tiss ...
... A tissue is a collection of similar type of cells. The cells are associated with some intercellular matrix (ground substance) and they are governed by some laws of growth and development to form tissue. These cells are adopted to perform same function or functions. • How are tissues classified? Tiss ...
Protozoans Notes
... mitochondria and plastids were acquired by symbiogenesis. Mitochondrial enzymes have been reported in both groups so their absence of mitochondria may be a secondary derivation. Retortamonds lack both mitochondria and Golgi bodies (e.g., Giardia lamblia) ...
... mitochondria and plastids were acquired by symbiogenesis. Mitochondrial enzymes have been reported in both groups so their absence of mitochondria may be a secondary derivation. Retortamonds lack both mitochondria and Golgi bodies (e.g., Giardia lamblia) ...
files/Ch 29 Study Guide
... 1. Describe three adaptations of leaves for functions besides photosynthesis. _________________ _________________________________________________________________ _________________________________________________________________ 2. What is the usual function of the epidermal hairs on a leaf? ________ ...
... 1. Describe three adaptations of leaves for functions besides photosynthesis. _________________ _________________________________________________________________ _________________________________________________________________ 2. What is the usual function of the epidermal hairs on a leaf? ________ ...
MEMBRANES
... b. Hot temperatures – blood vessels dilate to increase blood flow to the skin to dissipate to the extremities and sweat production increases to cool body 5. Blood reservoir – when other body organs need blood supply, the nervous system constricts dermal blood flow 6. Production of Vitamin D – UV lig ...
... b. Hot temperatures – blood vessels dilate to increase blood flow to the skin to dissipate to the extremities and sweat production increases to cool body 5. Blood reservoir – when other body organs need blood supply, the nervous system constricts dermal blood flow 6. Production of Vitamin D – UV lig ...
how to build a
... another slew of challenges, This is particularly true for the says Jason Wertheim, a surintricate networks of capillargeon at Northwestern Uniies that must supply the heart versity’s Feinberg School of with oxygen and nutrients and Medicine in Chicago, Illinois. remove waste products from “One, what ...
... another slew of challenges, This is particularly true for the says Jason Wertheim, a surintricate networks of capillargeon at Northwestern Uniies that must supply the heart versity’s Feinberg School of with oxygen and nutrients and Medicine in Chicago, Illinois. remove waste products from “One, what ...
Chapter 46 - Mantachie High School
... Muscle fibers consist of myofibrils—bundles of threadlike structures Myofibrils are made of 2 types of protein filaments: 1) Thick filaments—made of the protein myosin 2) Thin filaments—made of the protein actin Thin actin filaments are anchored at their endpoints to a structure called the Z line. T ...
... Muscle fibers consist of myofibrils—bundles of threadlike structures Myofibrils are made of 2 types of protein filaments: 1) Thick filaments—made of the protein myosin 2) Thin filaments—made of the protein actin Thin actin filaments are anchored at their endpoints to a structure called the Z line. T ...
The Lymphatic System and the Blood
... Hb production begins in basophilic erythroblasts Reticulocytes: lose nucleus, after 1-2 days in circulation lose organelles ...
... Hb production begins in basophilic erythroblasts Reticulocytes: lose nucleus, after 1-2 days in circulation lose organelles ...
A change in ocean current causes the climate on an island to
... Bone also contains a soft material called bone marrow. There are two types of marrow: o 32. RED bone marrow: provides both red and white blood cells. ...
... Bone also contains a soft material called bone marrow. There are two types of marrow: o 32. RED bone marrow: provides both red and white blood 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.