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Adaptations. Objectives. SPI 0807.5.2 Analyze structural, behavioral, and physiological adaptations to predict which populations are likely to survive in a particular environment

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Adaptations

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Adaptations


Objectives

  • SPI 0807.5.2 Analyze structural, behavioral, and physiological adaptations to predict which populations are likely to survive in a particular environment

  • SPI 0807.5.3 Analyze data on levels of variation within a population to make predictions about survival under particular environmental conditions.

    I can:

  • Identify an adaptation as structural, behavioral, or physiological.

  • Explain how an adaptation helps an organism survive in a particular environment.


Types of Adaptation

  • Anything that helps an organism survive in its environment 

  • Adaptations are inherited from their parents

  • It also refers to the ability of living things to adjust to different conditions within their environments. 

    • Structural adaptation

    • Behavioral adaptations

    • Physiological adaptations

I can identify an adaptation as structural, behavioral, or physiological.


Structural adaptations

  • A structural adaptation involves some part of an organism's body.

    • Teeth

    • Body coverings

      • Shells

      • Quills

      • Scales  

    • Camouflage

    • Mimicry

I can identify an adaptation as structural, behavioral, or physiological.


Example of Adaptation

  • The shape of an animal’s teeth is related to its diet.

    • Herbivores, such as deer, have many molars for chewing tough grass and plants.

    • Carnivores, such as lions, have sharp canines to kill and tear meat.

I can explain how an adaptation helps an organism survive in a particular environment.


Camouflage

  • Camouflage allows an animal to blend into its environment. 

  • Makes it hard for enemies to single out individuals  

I can explain how an adaptation helps an organism survive in a particular environment.


Mimicry

  • Mimicry allows one animal to look, sound, or act like another animal to fool predators into thinking it is poisonous or dangerous.  

I can explain how an adaptation helps an organism survive in a particular environment.


I can explain how an adaptation helps an organism survive in a particular environment.

Plant Adaptations

  • Vascular-stems

  • Root systems

  • Thorns

  • Leave type

    • Broad:absorb more sunlight

    • Small needle-like: reduce water loss

    • Waxy: reduce water loss, protect from fire

    • Poisonous/toxins


Behavioral adaptations

  • Behavior adaptations include activities or behaviors that help an animal survive. 

    • Innate

    • Learned

    • Survival

    • Seasonal

I can identify an adaptation as structural, behavioral, or physiological.


Innate vs. Learned

Innate

Learned

Learned from experience or from observing other animals

Examples

Type of language spoken for humans

Riding a bicycle

  • Inherited through the genes

  • Examples

    • Flying for bees, birds

    • Swimming for fish

    • Walking for humans

    • Speaking for humans

I can explain how an adaptation helps an organism survive in a particular environment.


Survival Behavior

I can explain how an adaptation helps an organism survive in a particular environment.

  • Finding food

    • Predator-Prey adaptations

      • Predator-animals that eat other animals

      • Prey-animal being eaten

  • Marking Territory

    • Way that animals inform other animals that an area is occupied

  • Defensive Action

    • Protect resources, themselves, food, mates, offspring

  • Courtship

    • Behaviors used to find a mate

  • Parenting

    • Depend on parents for survival


I can explain how an adaptation helps an organism survive in a particular environment.

Animal Defense

  • Some animals use these methods of defense to protect themselves:

    • Camouflage

      • Snake

    • Mimicry

      • Mexican Milk Snake

    • Bright colors

      • Skunk and Poison Arrow Frog

    • “Hair” projections

      • Hedgehog quills

      • Deer Antlers


Seasonal Behavior

  • Help organisms adapt to the environment

  • Migration

  • Hibernation

  • Estivation

  • Biological Clock

I can explain how an adaptation helps an organism survive in a particular environment.


Migration

  • Animals migrate for different reasons. 

    • better climate

    • better food

    • safe place to live

    • safe place to raise young

    • go back to the place they were born.

  • Adaptation that involves an animal or group of animals moving from one region to another and then back again. 

I can explain how an adaptation helps an organism survive in a particular environment.


Period of inactivity in which animal’s body temp., heart rate, and breathing rate slow down to conserve energy.

Bats, woodchucks & bears.

I can explain how an adaptation helps an organism survive in a particular environment.

Hibernation


I can explain how an adaptation helps an organism survive in a particular environment.

Estivation

  • Period of inactivity in the summer

    • hot, dry places

  • Snakes, lizards, frogs, toads


Biological Clock

  • Internal control of animal’s natural cycle

I can explain how an adaptation helps an organism survive in a particular environment.


Physiological Adaptations

  • Behaviors controlled by the brain

    • Reflexes

    • Blinking

    • Pain

    • Swallowing

    • Tolerance to a certain poison

    • Logical thinking

I can identify an adaptation as structural, behavioral, or physiological.


Mammals

  • warm-blooded

  • All have some type of “hair”

    • Some are very specialized, such as white polar bear fur

  • Care for young

I can explain how an adaptation helps an organism survive in a particular environment.


Birds

  • Leg Length

    • Roseate Spoonbill (top right)

  • Foot Webbing

    • Laughing Gull (top left)

  • Beak Shape

    • Long Billed Curlew (bottom)

I can explain how an adaptation helps an organism survive in a particular environment.


Reptiles

  • cold- blooded

  • Scales

  • Some undergo hibernation and estivation

  • Lay eggs on land

  • Leg structure and position

I can explain how an adaptation helps an organism survive in a particular environment.


Amphibians

  • Cold-blooded

  • Lay eggs in water

  • Partially of fully webbed feet

  • Have lungs or can absorb oxygen through their skin

I can explain how an adaptation helps an organism survive in a particular environment.


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Natural SelectionandPopulation Changes Over Time


Objectives

  • SPI 0807.5.2 Analyze structural, behavioral, and physiological adaptations to predict which populations are likely to survive in a particular environment

  • SPI 0807.5.3 Analyze data on levels of variation within a population to make predictions about survival under particular environmental conditions.

    I can:

  • Explain how genetic variations within a population help an organism survive longer.


Natural Selection

  • The process by which individuals are better adapted to their environment

  • “Survival of the Fittest”

  • The fittest survive to pass on their traits to the next generation.

  • Examples:

    • Insecticide resistance

    • Speciation

    • Galapagos finches

http://www.vtaide.com/png/bird-adaptations3.htm

I can explain how genetic variations within a population help an organism survive longer.


I can explain how genetic variations within a population help an organism survive longer.


Insecticide Resistance

Speciation

I can explain how genetic variations within a population help an organism survive longer.


Genetic Variation

  • Differences that exist naturally among the members of a species

  • Some traits are better suited than others to survive in their environment

I can explain how genetic variations within a population help an organism survive longer.


I can explain how genetic variations within a population help an organism survive longer.


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