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Life and Ecology 1 Module #1 – Supporting Standards.

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Presentation on theme: "Life and Ecology 1 Module #1 – Supporting Standards."— Presentation transcript:

1 Life and Ecology 1 Module #1 – Supporting Standards

2 Organism Characteristics Prokaryote- Organism whose cells do not have a nucleus Eukaryote- Organism whose cells do have a nucleus Unicellular- Organisms that only have 1 cell Multicellular- Organisms that have 2 or more cells Autotroph- Organisms that make their own food Heterotroph- Organisms that have to eat their food Asexual- Reproduce themselves. 1 parent involved. Offspring is uniform, or all the same. Sexual- Two parents required to produce offspring. Offspring is diverse. Readiness

3 Energy Flow in Food Chains, Food Webs, and Energy Pyramids Food Chain- follow the arrows to see how the energy flows. Readiness

4 Energy Flow in Food Chains, Food Webs, and Energy Pyramids Food Webs- describe all the relationships in a ecosystem. They compose of many food chains. Readiness

5 Energy Flow in Food Chains, Food Webs, and Energy Pyramids Energy Pyramid Readiness

6 Human Effect on Watersheds A watershed consists of all the surface water (rivers, streams, lakes, gutters) and its ground water (aquifers, wells, any water source underground). Readiness

7 Human Effect on Watersheds Farmers and other citizens sometimes use too much fertilizer or change their oil in the driveway. When this happens, run- off can occur which then pollutes the watershed, which in turn harms the ecosystems in those particular watersheds. Readiness

8 Human Impact on Oceans Humans often cause run-off of nitrogen into the oceans because of the over use of chemical fertilizers on farms and lawns. This often results in algae blooms, which causes an imbalance within the ocean ecosystem. Humans can also over fish for food resources from the ocean which can cause more producers because less consumers are available to eat them. Sunken ships and even artwork is often used to create artificial reefs or ecosystems for marine life. Readiness

9 Biodiversity and Sustainability Biodiversity means that there is a wide variety of life in an ecosystem. The more different types of organisms we have, the better the ecosystem will survive. If biodiversity is lost, then the ecosystem cannot sustain itself. Readiness

10 Ecological Succession Ecological succession occurs slowly over time. Fire happens After 1 year. Readiness

11 Dichotomous Keys A dichotomous key is a tool to help classify organisms based on their characteristics. Readiness

12 Natural Selection and Selective Breeding Nature determines the characteristics of organisms that make it suitable to survive and reproduce in a particular environment. Selective breeding is when organisms with the desired characteristics are bred to produce a new organism with those desired characteristics only. Readiness

13 Human Body Systems DR. MCSNEER II Digestive- absorbs nutrients from food into the blood stream Reproductive- makes new organisms Muscular- Helps body move Circulatory- Delivers oxygen rich blood all over the body Skeletal- supports body and helps protect organs. Readiness

14 Human Body Systems DR. MCSNEER II Nervous- Includes brain and nerves. Control center of body. Excretory- kidneys, filters waste from blood. Sweating. Endocrine- glands, hormones regulate growth, organ functioning, reproduction. Respiratory- Lungs, Intake of Oxygen, release of carbon dioxide waste Integumentary- skin, nails, hari, outer protective layer of body Immune- fights diseases. Readiness

15 Plant and Animal Cells You have to be able to describe what parts that plants and animal cells have in common and which ones are different. Readiness Only Plant CellBothOnly Animal Cell ChloroplastNucleusSmaller vacuole Cell WallCell Membrane Larger VacuoleMitochondria Golgi body

16 Plant and Animal Cells Readiness

17 Cell Theory According to cell theory all organisms are composed of cells and cells carry on similar functions such as extracting energy from food to sustain life. Readiness

18 Reproduction Asexual - Produces uniform offspring Sexual- Produces diverse offspring Readiness

19 Inheritance: Genes, Chromosomes Inherited traits of individuals are governed in the genetic material found in the genes within chromosomes in the nucleus. Readiness


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