Monday, February 22, 2016

Unit 3 Topics and Practice Sites

Unit 3: Reproduction, Heredity & Evolution


Topic 1: Reproduction

Image result for asexual reproduction
  • Asexual Reproduction
    • no sperm and egg needed
    • one parent
    • exact copy of the organism is created
    • some animals and plants
    • bacteria and protists 
    • cell division: mitosis
  • Sexual Reproduction
    • combining of genes from two parents
    • sperm cell and egg cell combine
    • animals and plants
     
Topic 2: Meiosis vs. Mitosis

Topic 3: Genetics
  • Vocabulary
    • Heredity
    • Genetics
    • Inheritance
    • Allele
    • Dominant allele
    • Recessive allele
    • Homozygous
    • Heterozygous
    • Genotype
    • Phenotype
    • Punnett square - play this fun game to help you review!
Topic 4: Mutations
Topic 5: Evolution
  • Change Over Time
  • Natural Selection, survival of the fittest
  • Charles Darwin
  • Evidence for Evolution



    Monday, November 23, 2015

    Unit 2: Dynamic Equilibrium: Other Organisms

    Unit 2: November 30 - February 11

    "Other Organisms" refers to living things that are not humans.  In our first unit we discovered the human body and how the body systems work together to maintain homeostasis and keep us functioning.

    In Unit 2 we examine how other living things are similar to and different from humans.
    • Unit 2 Introduction: What characteristics do all living things share?
      • Made of cells
      • Take in energy
      • Use energy
      • Exchange gases
      • Reproduce
      • Contain DNA
      • Contain water
      • Go through a life cycle 
    • Animals: 
      • Invertebrates
      • Vertebrates (5 groups)
    • Plants 
      • Characteristics
      • Classification

    Tuesday, October 27, 2015

    ANNOUNCEMENTS

    UNIT 1 EXAM: Thursday, 11/19

    Use the links below to help you review the human body systems for the Unit 1 Exam.

    In-class Unit Exam Review

    Interactive Game for Human Organs

    Articles for Tuesday, 11/10 homework

    1. Cutting Sugar Improves Children's Health in Just 10 Days
    2. Screen Addiction Is Taking a Toll on Children

    Topics we are currently studying:

    Cell division
    Mitosis
    Importance of cell division
    The role of chromosomes in cell division

    Previous weeks:

    ENDOCRINE SYSTEM

    • Glands are structures that make hormones
    • Hormones are chemicals that signal parts of the body to perform certain functions
    • Students created posters based on one gland 

    NERVOUS SYSTEM

    • The nervous system sends signals from your brain, down your spinal cord and through your nerves to control movement and responses to your environment
    • The Autonomic Nervous System controls body functions you don't think about

    MUSCULAR SYSTEM

    • Muscles cross bones 
    • Muscles contract (get shorter) and pull on bones to create movement 
    • 3 types: smooth (internal organs), cardiac (heart), and skeletal (for movement, connected to your skeleton)
    • 2 ways muscles are controlled: voluntary (you think about it), involuntary (you don't think about it)

    FUNCTIONS OF THE SKELETON:
    • provide support for your body
    • make red blood cells
    • provide protection for soft internal organs
    PARTS OF THE SKELETON:
    • Axial skeleton: skull, ribcage, vertebrae
    • Appendicular skeleton: legs, arms, hands, feet, pelvis, shoulder

    Wednesday, October 21, 2015

    Excretory System

    Urinary System - Watch the VIDEO we watched in class about Iyanti Browne on dialysis.

    Parts of the Urinary system:

    • Kidneys - filter the blood
    • Ureters - tubes from the kidneys to the bladder
    • Bladder - muscular bag that holds urine
    • Urethra - tube that passes urine from bladder to outside of body
    Other ways waste is excreted (removed) from the body:
    • Skin - sweating
    • Respiration - exhale carbon dioxide and water
    • Digestion - solid waste that is not digested from your food


    Monday, October 19, 2015

    Respiratory System

    Path of Air:
    nose - air is cleaned by tiny hairs called cilia
    pharynx - throat, epiglottis is a flap of tissue that covers the trachea when you swallow food
    larynx - voicebox
    trachea - windpipe, made of flexible cartilage
    bronchi - 2 branches of the trachea
    bronchioles - more branches in the lungs
    alveoli - tiny air sacs at the end of the bronchioles, touch capillaries in the circulatory system to transfer oxygen into your blood stream

    Air you breathe in has more oxygen, air you breathe out has more carbon dioxide.
    The millions of alveoli increase the surface area, just like the villi in the small intestine. This helps to increase the amount of oxygen that diffuses into your bloodstream.

    Thursday, October 15, 2015

    Circulatory System

    Schoolhouse Rock Circulation Song

    Your Circulatory System is made of three main components:

    1. Heart - 4 chambers
      1. 2 upper - atriums
      2. 2 lower - ventricles
    2. Blood vessels
      1. arteries
      2. veins
      3. capillaries
    3. Blood
      1. plasma
      2. platelets
      3. red blood cells
      4. white blood cells




    Wednesday, October 14, 2015

    Respiratory System

    Click here to watch the video we saw in class today.

    Complete any blanks in your notes.

    Rewrite your notes using either a concept map or a drawing.  This must be done by hand, not on the computer.