Unit 2 Ecology Day 2

Independent Practice 20 min

Complete: Characteristics of Life Concept Map pg. 1

AND

Complete Abiotic vs Biotic Factors pg. 4

minutes

Levels of Organization

• Small • Large

Levels of Organization

• Letter = W

• Word = Letters join to make a Word

• Sentence= Words join to make a a Sentence.

• Paragraph= 2 or more Sentences make up a Paragraph.

• Essay= 2 or more Paragraphs make up an Essay.

• Book= collection of essays

• Library= collection of books

Biological Organization

Organelle

ATOM

1. Atom is the smallest particle of a substance

Ex. Carbon, hydrogen

MOLECULES2. Molecules are made when atoms bond together

Ex. proteins and nucleic acids.

Organelle3. Organelles are formed when molecules join together

An organelle is found INSIDE of cells; performs a specific function

Ex. Nucleus, mitochondria, chloroplast

CELLS4. Organelles join together to form cells.

The cell is the smallest unit of living matter

TISSUE

5. Tissues form when cells join

Tissues are a group of cellsworking together to perform a similar function.

Ex. cardiac tissue, epithelial tissue

ORGANS6. ORGANS are formed when similar tissues join together

Organ is a group of tissues working together

Ex. brain, leaf, lung

ORGAN SYSTEM 7. Organ systems are a group of organs working together as a unit to ensure the body keeps functioning

Examples: root system, reproductive system

ORGANISM8. Organism is made from systems

Organism is an individual life composed of a single cell or a complex of cells.

*What organism would you NOT find tissue, organs, or systems?

BACTERIA! Why? They are unicellular!

9. Population: group of individuals of the same species, which interbreed and live in the same place at the same time.

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10. Community:collection of different populations species that live in a defined area

11. Ecosystem:All the biotic factors that live in a place, together with their abiotic environment

12. Biomes: Group of ecosystems that share similar climates and typical organisms

The average year-after-year conditions of temperature and

precipitation in a particular region.

13. Biosphere:part of the Earth in which life exists including land, water, and air or atmosphere

What part of the Earth is not included in the Biosphere? Why?

Mantle & Core because no life has been discovered there yet

Community

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What is Ecology??

• The study of interactions that take place between organisms and their environment.

• It explains how living organisms affecteach other and the world they live in.

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Habitat & Niche• Habitat is the place a plant or animal lives

• Niche is an organism’s total way of life (job)

• how it meets its specific needs for food and shelter, how and where it survives, and where it reproduces in its environment.

Competition• Competition occurs when organisms occupythe same niche and have to fight for resources.

• Having a different niches can reduce competition.

• Competition helps determine the numberand kinds of species in a community and the niche each species occupies.

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Specific Adaptations• Organisms have adaptations

that enable them to survive in

their specific habitat.

• What adaptation did the hare

have to help it avoid predators?

• What adaptations would help it

win against competitors?

Rain ForestTundra

Diversity of Life-How did life become so diverse? COMPARE

Broad leaves to capture

sun. WHY?Ground-hugging plants. Why?

Adaptations that allow for tree

climbingPlenty of thick white fur…

Diversity of Life• Adaptations: certain features or

characteristics that allow an organisms to live successfully in its habitat.

• Organisms living in different habitatsneed different adaptations or variations.

• Variations occur over generations and involves small changes between organismswhich may allow that organism to competebetter for survival.

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Extreme: Pompeii Worm

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The Pompeii worm is adapted to the high

temperatures and pressures of the

hydrothermal vents by:

•using a thick layer of bacteria to protect it from

heat

•hiding inside a papery tube to protect it from

predators.

What causes all these adaptations?

All living populations MUST be able

to respond, compete for resources,

and genetically adapt (over

generations) to their environment

otherwise they will become extinct!