OAKS Prep

Wednesday April 9th 2014 Welcome! Take out your review packet and pick up your practice test from the front counter. Review your test and work on making sure your self- assessment (yellow page) is complete.

Crust and mantle…….. How far is it from the surface to the center of the earth? 6371km The Earth’s crust is _________ km thick. 100 or 5-70km The inner core is made from iron and ________. Nickle The plastic-like layer of the Earth is called the ___________. Mantle/ Asthenosphere The innermost layer of the Earth is the ____________. Inner Core

Day 2- Ecosystems, Natural Selection and Natural Resources

Living things on Earth interact.

Kingdoms of Life Open to page 7 in your review packet

Kingdoms of Life How do we classify life? The number of cells The type of nucleus in their cells How they eat Unicellular has only one cell per being Example- Archaea, Bacteria, Protista Multicellular has many cells per being Example- Fungi, Plantae, Animalia

Kingdoms of Life Prokaryotic = no membrane around the nucleus Example- Archaea, Bacteria Eukaryotic= do have a membrane around the nucleus Example- Protista, Fungi, Plantae, Animalia Autotroph= can make their own food Example- Archaea, Bacteria, Protista, Plantae Heterotroph= must get there food from others -Example- Bacteria, Protista, Fungi, Animalia

Kingdoms of Life If you were asked to classify an organism that is multicellular and autotrophic, in which Kingdom might you place it? Plantae

Kingdoms of Life If your mystery organism is unicellular and prokaryotic, into which two Kingdoms might you place it? Archaea or Bacteria

Kingdoms of Life If the mystery organism is multicellular, eukaryotic and heterotrophic, it could belong to which twoKingdoms? Fungi and animalia

Types of Plants and Animals * Monocot= grass (means 1 leaf) Dicot= most everything else (means at least 2 leaves)

Types of Plants and Animals Conifer = reproduces with seeds in cones, usually has needles, usually green all year.

Types of Plants and Animals Deciduous- has leaves that usually change color and fall during autumn; reproduces with seeds, fruit and flowers.

Types of Plants and Animals Arthropods= animals with jointed legs and exoskeletons.

Types of Plants and Animals Reptiles= reproduce by laying eggs, are covered in scaly skin, and are cold- blooded.

Types of Plants and Animals Birds= reproduce by laying eggs, have feathers, many can fly, cold blooded.

Types of Plants and Animals Amphibians = reproduce by laying eggs, can live on land and in the water, go through metamorphosis.

Types of Plants and Animals Mammals- reproduce with live births, are covered in hair, warm blooded.

Types of Plants and Animals Fish- have scales, bones, gills, and are cold blooded.

Ecosystems An ecosystem is a community of living organisms.

Ecosystems provide resources. All life needs….. Food Shelter Water Space ….to survive.

Natural Resources Are materials we use/need to survive. Some are renewable, like wood and oxygen Some are nonrenewable, like oil

Natural Selection Why do these birds have different beaks?

Natural Selection When biological traits become more or less common in a population based on the environment the organism lives in.

Food Webs In a ecosystem living things are connected by who they eat and who eats them.

Food Webs

Food Webs

Practice Questions Which of the following would be considered a nonrenewable resource? A. sand B. ferns C. coal D. fresh water Answer- C

Practice Questions Which organism would be considered an autotroph? A. tomato plant B. giraffe C. mushroom D. toad ANSWER- A

Practice Questions In the food web below, which organism would be considered a secondary consumer? A. Hawk B. Snake C. Mouse D. Grass ANSWER- B