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Topic: Characteristics of Living Things. Introduction to Life Science. What are the characteristics of living things?. The science of “LIFE”. BIOLOGY =__________________ = ________________. Study of living things. Bacteria. It’s Alive!. Characteristics of Life?.
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Introduction to Life Science What are the characteristics of living things?
The science of “LIFE” BIOLOGY =__________________ = ________________ Study of living things Bacteria
Characteristics of Life? • Look around the room. There are many living and non-living things, such as lights and books. There are many living things such as people. • What makes people and plants different from lights and books?
Characteristics of ALL LIVING THINGS • ______________________________ • ______________________________ • ______________________________ • _____________________________ • ______________________________ • ______________________________ • ______________________________ • ______________________________ Grow and develop Organization= Made of specialized cells. Reproduce Obtain and use materials & energy Respond to their environment Maintain a stable internal environment
LIVING THINGS ARE: The _____ is the ______________. CELL basic unit of life http://sps.k12.ar.us/massengale/study_guides_bi.htm
...Are Composed of Cells • Cells are the basic components of all living things. Some organisms are single celled, like bacteria, or multi-celled, like humans. This is a single-celled organism called an amoeba.
DIFFERENT KINDS DIFFERENT FUNCTIONS 1. Organization-have _______________ of cells with _____________________. Ex: one-celled and single celled Image from: http://www.isscr.org/images/ES-cell-Fig-2.jpg
LIVING THINGS UNICELLULAR ____________organisms are _____________ made of only 1 cell bacteria (Ex: _________) Image from: http://www.agen.ufl.edu/~chyn/age2062/lect/lect_06/bacsiz.GIF
LIVING THINGS MULTICELLULAR _________________ organisms_______ as _________ but as adults are _________________________ Ex: (___________ __________ ) BEGIN ONE CELL MADE OF MANY CELLS a human a tree Images from: http://www.angelbabygifts.com/ http://www.inclusive.co.uk/downloads/images/pics2/tree.gif
PROCESS OF CHANGING The ________________ EMBRYONIC STEM CELLS into different looking ADULT cells doing different jobs = __________________________ DIFFERENTIATION Image from: http://www.ncu.edu.tw/~ls/graph/faculty_pictures/whole_time/SLC/SLC_lab-1.jpg
ALL LIVING THINGS 2. Grow & develop Image by Riedell SINGLE CELLED In _____________ organisms, like a bacterium, growth is mostly a simple ________________. INCREASE in SIZE
ALL LIVING THINGS 2. Grow & develop Image by Riedell Image from: http://www.bcps.org/offices/lis/models/life/images/grow.JPG Multicellular organisms grow bigger by __________________ AND _____________________. increasing cell size increasing cell number
All cells have the SAME DNA... _________________________ what makes them ___________ is _______________ are _______________________ different WHICH GENES TURNED ON or OFF See end of show for image sources
ALL LIVING THINGS3. Reproduce • Living things make more of their own kind.
ALL LIVING THINGS3. Reproduce SEXUAL REPRODUCTION ________________________ _____________the ___________________ from _____________ ________________ Seen in animals and plants combines genetic material 2 parents sperm + egg = baby Family image from: http://babyhearing.org/Parenet2Parent/index.asp
ALL LIVING THINGS3. Reproduce ASEXUAL REPRODUCTION _________________________ makes a new organism using the ________________ from _________________ Seen in bacteria, plants, and some animals genetic material ONLY 1 PARENT Planaria animation: http://www.t3.rim.or.jp/~hylas/planaria/title.htm
grow and develop To________________,organisms _______ a constant supply of ____________________ & _________They get it through eating (Food). need ALL LIVING THINGS4. Take in Materials & Use Energy BUILDING MATERIALS ENERGY! This sheep uses the MOLECULES and ENERGY in the food it eats to make “more sheep” http://ag.ansc.purdue.edu/sheep/ansc442/Semprojs/2003/spiderlamb/eatsheep.gif
ALL LIVING THINGS4. Take in Materials & Use Energy AUTOTROPHS ___________ use energy from sunlight or chemicals to ________________ make their own food Image from: http://vilenski.org/science/safari/cellstructure/chloroplasts.html GREEN PLANTS Ex: _____________ use ____________to turn _________ into _________ photosynthesis glucose sunlight http://www.inclusive.co.uk/downloads/images/pics2/tree.gif
ALL LIVING THINGS4. Take in Materials & Use Energy ______________ get their energy by ___________________ HETEROTROPHS consuming other organisms Animals Ex: ________ (including you) and _________________ most bacteria Image from: http://www.epa.gov/region5/superfund/ecology/images/fishcartoon.gif
ALL LIVING THINGS5. Respond to their environment A signal to which an organism responds = ___________________ STIMULUS Image from: http://www.travel-net.com/~andrews/images/animations/traffic.gif
ALL LIVING THINGS5. Respond to their environment Image from: http://www.ccs.k12.in.us/chsBS/kons/kons/images/stimresp.jpg A stimulus can be _________________ EXTERNAL Ex: When there is enough water and ground is warm enough, seed germinates. Roots respond to gravity & grow downward.Leaves respond to sunlight & grow up. http://www.nofretete-page.de/gemischtNeu/TN_plant_grow_w.JPG
ALL LIVING THINGS5. Respond to their environment http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM2.html A stimulus can be ____________ INTERNAL Ex: When the glucose level in your bloodstream becomes low, your body responds by making you feel hungry. http://www.israellycool.com/eat%20guy%20AFP.jpg
ALL LIVING THINGS6. Homeostasis Keep conditions inside the cell constant = ______________________ IF temperature, water content, nutrients, acidity change too much . . . the cell will die. HOMEOSTASIS
FEEDBACK 6. HOMEOSTASIS involvesinternal __________ mechanisms If body temp drops too low, “shivering” produces heat to warm you up. If temp is too hot, “sweating” cools you down. http://www.dreamstime.com/thumb_4/1099235658Q3A4x8.jpg http://www.clipartheaven.com/clipart/seasons_&_weather/overheating_2.gif
6. HOMEOSTASIS Drinking a BIG GULP increases the amount of water in your body http://www.me-go.net/rtw/images/biggulp.jpg Your next stop gets rid of the excess water. (OSMOREGULATION) http://pluck.typepad.com/photos/uncategorized/restroom_blog.gif
Characteristics of ALL LIVING THINGS • ______________________________ • ______________________________ • ______________________________ • _____________________________ • ______________________________ • ______________________________ • ______________________________ • ______________________________ Grow and develop Organization= Made of cells. Reproduce Obtain and use materials & energy Respond to their environment Maintain a stable internal environment
Living or Non-Living? LIVING!
Living or Non-Living? LIVING!
Living or Non-Living? LIVING!
Living or Non-Living? NON-LIVING!
Vocab word chemical reactions the combination of all the _________________ through which an organism ________ or ___________ materials as it carries out its life processes = ___________________ builds up breaks down metabolism
Living or Non-Living? LIVING!
Living or Non-Living? LIVING!
Living or Non-living • In order for an organism to be considered living. It must contain all of the characteristics of a living thing.
Living or Non-Living? LIVING!
Living or Non-Living? Bacteria LIVING!
ALL LIVING THINGSas a group, change over time EVOLUTION = ______________ Allows _______ of ________ in a ___________ survival species changing world http://cache.eb.com/eb/image?id=63386&rendTypeId=4
http://brookings.k12.sd.us/biology/intro.htm#WORKSHEETS/HANDOUTShttp://brookings.k12.sd.us/biology/intro.htm#WORKSHEETS/HANDOUTS
It’s like having a whole library full of books, but reading only the books that are important to you. http://school.discovery.com/clipart/clip/report2.html http://www.adc.state.az.us/programs/offlibsvs.html
All living things share a universal genetic code Hereditary material = DNA ______________________ DEOXYRIBONUCLEIC ACID Segment of DNA ________________ with instructions for one _________ is called a ________. PROTEIN GENE Image from: http://sbchem.sunysb.edu/msl/dna.gif