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STAAR Review DAY 10 ORGANISMS AND ENVIRONMENTS STAAR Review DAY 10 ORGANISMS AND ENVIRONMENTS

STAAR Review DAY 10 ORGANISMS AND ENVIRONMENTS - PowerPoint Presentation

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Uploaded On 2018-12-05

STAAR Review DAY 10 ORGANISMS AND ENVIRONMENTS - PPT Presentation

TEKS 811C R 711A S 712B S 712D S 712F S 714B S 714C S 612D S Hedgehog Learning Traits and Environmental Changes Hedgehog Learning Why did the environmental changes in the early 1900s in England cause the gray peppered moth to decline but the bla ID: 735979

hedgehog learning cell skin learning hedgehog skin cell genetic humans reefs traits environmental reproduction dichotomous human nucleus eukaryotic keys

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Slide1

STAAR Review DAY 10

ORGANISMS AND ENVIRONMENTSTEKS 8.11C (R), 7.11A (S), 7.12B (S), 7.12D (S), 7.12F (S), 7.14B (S), 7.14C (S), 6.12D (S)

© Hedgehog LearningSlide2

Traits and Environmental Changes

© Hedgehog Learning

Why did the environmental changes in the early 1900’s in England cause the “gray” peppered moth to decline, but the “black” peppered moth increased in population?Slide3

Traits and Environmental Changes

Genetic trait for skin tone and skin cancer risk

© Hedgehog Learning

People with a genetic trait for fair skin are more likely to get skin cancer during their lifetime.

Fairer-skin humans generally originated further away from the equator than darker-skin humans.

Explain how the environment influenced early human traits for skin tone.Slide4

Dichotomous Keys

Dichotomous keys help us to identify organisms based on their physical characteristics.What is the dichotomous key in the picture used to identify?

© Hedgehog LearningSlide5

Body Systems

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Reproduction

Sexual ReproductionRequires male and female

Fewer offspringGreater genetic variationAsexual Reproduction

Requires only one parent

Many offspring

Less genetic variation

What are the advantages of sexual reproduction in fighting off certain illnesses over multiple generations?

© Hedgehog Learning

Some plants can reproduce asexually.

Animals reproduce sexually and produce fewer offspring.Slide7

Parts of a Cell

© Hedgehog Learning

Parts of a Cell

Looking at the diagram on the right:

Where is the genetic material contained?

Is this cell prokaryotic or eukaryotic?

Is this cell autotrophic or heterotrophic?

Would this cell be found in the animal kingdom?

Nucleus

Eukaryotic

Autotrophic

NoSlide8

Human Interaction with the Oceans

Building artificial reefs to replace those damaged by humans

© Hedgehog Learning

Many coral reefs have been damaged or destroyed by human activity and pollution.

In an effort to restore destroyed reefs, scientists have created artificial reefs like the one in the picture.

What other ways have humans influenced the ocean habitat? Slide9

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Would not help avoid predators

Would not help in summertimeSlide10

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They would not have as good of a chance at survival.Slide11

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The change would happen slowly

They would not find food

Many would starveSlide13

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Oval = elongatedSlide14

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YOU are Eukaryotic (your cells contain a nucleus)Slide17

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The nucleus contains DNASlide18

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