Life Science CFA Review

Life Science CFA Review

By Brielle Crawford

Nonliving things do NOT have a life cycle and needs

Examples of Nonliving Things

Water, Air, Rocks, Temperature, Sunlight​ (WARTS)

Nonliving Things

All living things are called Organisms

Plants Basic Needs: Air, Water, Sunlight, Nutrients

Animal Basic Needs: Air, Water, Food, Shelter​

Living Things

Interactions

Interdependence: the needs for organisms to stay alive​

Multiple Choice

Which of the following is an example of a LIVING to LIVING?

• A rabbit burrows a hole in the ground

• A koala chewing on bamboo leaves

• Plants absorbing sunlight with their leaves

• An eagle flying in the sky

Multiple Choice

Which of the following is NOT a basic need for Animals?

• Water

• Food

• Air

• Nutrients

Multiple Select

Select ALL of the following basic needs for plants

• Air

• Sunlight

• Nutrients

• Water

Food Webs

• ​Food Webs show the path energy flows in an ecosystem

• Arrows on a food web show where the energy COMES FROM and where it IS GOING​

• Producers are ALWAYS the first living link in a food web

  • Producers receive energy DIRECTLY from the sun and ALWAYS pass along the MOST energy

• Consumers are organisms that eat to obtain

  • ​These are herbivores, carnivores, and omnivores

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Food Webs

Herbivores

• ​Eats ONLY producers (plants)

​Carnivores

• ​Eats ONLY other animals

Omnivore​

• ​Gets energy from eating BOTH plants and other animals

​Decomposer

• Breaks down the remains of dead organisms and returns nutrients to soil

Multiple Select

What type of organisms obtain energy from consuming producers

• Producers

• Herbivores

• Carnivores

• Omnivores

Multiple Choice

Which number would be an herbivore?

• 6

• 2

• 4

• 1

Multiple Select

Which number(s) would be a carnivore?

• 5

• 2

• 4

• 3

Multiple Choice

Which number(s) would be an omnivore?

• 6

• 2

• 4

• 7

Structures and Functions

Structure: The physical part of the organism

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Function:​ how the structure (part) helps the organism to survive in its environment and ecosystem

Subject | Subject

Structures and Functions: Animals

Tongue and Neck: helps to reach food and water

​Tail: helps animals balance, keep warm, and/or store fat

​Body Coverings: helps camouflage, protect, and/or stay warm

​Whiskers/Antanee: helps animals observe their environment for things like temperature and wind

Ears: to regulate body temperature and hear prey/predators

​Mouth: help with consuming food

• Herbivore: flat teeth to grind plants

• Carnivores: sharp teeth to tear meat

• Omnivores: combo of flat and sharp teeth​

• Beak structure helps birds since they don't have teeth​

Feet: to dig & climb, grab food, and escape predators

Stem​: supports the plant; moves water and nutrients through the rest of the plant​

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Roots​: soaks up water and nutrients in the soil; anchors the plant to the ground

Seeds​: helps the plant reproduce

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Flower: attracts bugs and insects

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Leaves: soaks up sunlight to make food for the plant​

Structures and Functions: Plants

Multiple Choice

A porcupine and a pufferfish are shown below.

What structure do both these animals have in common that help them to survive in their environment?

• Spines that help ward off predators

• Fins to help swim away from predators

• Good sense of smell to help them catch prey

• Large eyes to help them hunt at night

Multiple Choice

Elephant ears are plants that are native to the tropical rainforest. They grow on the rainforest floor, have leaves that span up to 5 feet long and have a drip tip shape.

What characteristic of the elephant ears helps the elephant obtain sunlight?

• Drip tip shape to shade roots from the sun

• Green Leaves to attract predators

• Large leaves to absorb rays from the sun through the leaves

• Large leaves to give shelter to small mammals

Multiple Choice

Both the Jackrabbit and the Fennec fox live in a desert environment.

What adaptation helps protect the animals from predators?

• Large ears to regulate body temperature

• Fur on the bottom of their paws to protect them from the hot sand

• Fur coloring to help blend into their environment

• Sharp claws to help catch their prey

Learned behaviors are gained by:

• Interacting with human made objects

• Experiences

• Teaching and/or modeling

• Choices​

Learned Behaviors

​Anything an organism is born with is an inherited trait. Inherited behaviors are NOT taught or learned. They are abilities or instincts an organism can do naturally.

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Inherited Traits & Behaviors

Inherited Traits vs Learned Behaviors

​All features from a parent plant will reproduce their traits to be inherited to their offspring

Multiple Choice

The eagle has excellent eyesight and sense of smell. Inherited or Learned?

• Learned Behavior

• Inherited Trait

Multiple Choice

A baby robin watches its mother fly and tries to fly itself. Inherited or Learned?

• Inherited Trait

• Learned Behavior

Multiple Choice

A bear was sprayed by a skunk and now avoids all skunks. Inherited or Learned?

• Inherited Trait

• Learned Behavior

Multiple Choice

Loud noise hurting your ears. Inherited or Learned?

• Inhertied

• Learned