Life Science Review

Photosynthesis

• The process that plants use to make food is called photosynthesis.

• The word "photo" is the Greek word for "light." Plants rely on light from the sun to help them make food.

Photosynthesis

So the important thing to remember is that plants use sunlight, carbon dioxide, and water to make food inside of their leaves. During this process they make sugar and oxygen, which helps us!

Roles of Organisms

All about consumers, producers, and decomposers.

Organisms that make their energy through photosynthesis. Do not eat food for their energy.

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Producers

Organisms that eat to get the energy that they need.

Have to hunt or gather their food.

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Consumers

Herbivores are animals that only eat plants (producers)

Herbivore

​Carnivores are animals that only eat meat (other consumers "animals")

Carnivore

Omnivores eat both plants and meat (producers and other consumers)

Omnivore

​Types of Consumers

A prey is an animal that gets eaten by another animal.

EX: Rabbit gets eaten by a wolf

Prey

A predator is an animal that eats another animal.

EX: Wolf that eats a rabbit

Predator

Prey and Predator

Break down dead things, both plants and animals and take their nutrients.

Often leave rich soil behind.

EX: Worms and Mushroom

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Decomposers

Food chains show how energy moves from one organism to another. The arrow represents the energy. But you can also read it as what animal eats what.

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Food Chains

A food chain begins when plants convert energy from the sun into food. This energy then passes into animals that consume these plants. When animals eat other animals, this energy passes further down the chain. But nature isn’t this simple, nor are food chains. 

A food web is a group of interacting food chains. Food webs distribute the sun’s energy through an ecosystem. 

This is a trace fossil of an animal's burrow.

Trace Fossil: Burrow

This is a trace fossil of an animal's footprint.

Trace Fossil: Footprint

This is a cast fossil of a seashell.

Cast Fossil: Seashell

This is a cast fossil of a bug.

Cast Fossil: Bug

This is a mold fossil of a seashell.

Mold Fossil: Seashell

This is a mold fossil of a leaf.

Mold Fossil: Leaf

Multiple Choice

Which organism is a producer in this food web?

• Wolf Spider

• Grasshopper

• Cougar

• Clover

Multiple Choice

Which organism directly transfers energy to the frog?

• Flower

• Ladybug

• Frog

• Eagle

Multiple Choice

Which chain takes the sun’s energy to the rabbit?

• Sun → Grass → Rabbit

• Sun → Clover → Fox → Rabbit

• Sun → Clover → Fox → Cougar

Multiple Choice

What would happen if all the rabbits in this

ecosystem disappeared?

• The cougar and fox populations would

  decrease.

• The cougar and fox populations would

  increase.

• The wolf spider population would increase.

Multiple Choice

What type of consumer is the fox?

• herbivore

• omnivore

• carnivore

Multiple Choice

All animals are consumers.

• True

• False

Multiple Choice

What do several linked food chains make up?

• Food web

• Food pyramid

• Ecosystem

Multiple Choice

Which part of a plant is this?

• leaf

• root

• stem

• flower

Multiple Choice

The type of food that plants make in their leaves

• glucose
• oxygen
• carbon dioxide
• minerals

Multiple Select

What two things are the product (end result) of photosynthesis?

• chloroplast

• glucose

• oxygen

• carbon dioxide

Multiple Choice

This type of fossil forms when a mold is filled with sand or mud that hardens into the shape of the organism.

• Mold

• Cast

• Trace

• Preserved

Multiple Choice

This type of fossil forms when the mud or sand hardens into stone where a footprint, trail, or burrow of an organism was left behind.

• Carbon film

• Trace

• Petrified

• Cast

Multiple Choice

Trees and certain marine animals are sometimes fossilized in this way

• Petrified

• Trace

• Carbon Film

• Preserved Remains

Multiple Choice

Which fossil is the oldest?

• Fern

• Fish

• Ammonite

Multiple Choice

Which part of the plant makes the food?

• roots
• stem
• leaf
• flower

Multiple Choice

Where are the seeds located on an adult plant?

• roots
• stem
• leaf
• flower

Multiple Choice

Where does the energy start in this food chain?

• Plant
• Sun
• Deer
• Wolf

Multiple Choice

What are the organisms that break down dead stuff?

• Producers
• Consumers
• Decomposers
• Organisms

Multiple Choice

Squirrels gather and store acorns for the winter, which is a ___________ adaptation.

• Physical

• Behavioral

Multiple Choice

A nice smell is an adaptation that__________.

• helps the plant keep water inside the leaves
• pokes animals that try to eat the plant
• attracts pollinators to the plant.

Multiple Choice

Most fossils form when living things die and are buried by _______________ that hardens into rock over time.

• sediment

• people

• cement

• ants

Multiple Choice

Bears eat fish, insects, plants, seeds, nuts and young elk. They are called __________.

• Insectivore

• Carnivore

• Herbivore

• Omnivore

Multiple Choice

Lions only eat buffalo, antelopes, zebras and crocodiles. They are called __________.

• Omnivore
• Herbivore
• Carnivore
• Delivore

Multiple Choice

an animal that feeds on the remains of dead animals or garbage

• invasive species

• consumer

• scavenger

• predator

Multiple Choice

The feet of this bird tell us that this animal can...

• Run fast
• Swim 
• Fly fast
• Climb rocks 

Multiple Choice

What adaptation does a musk ox have that allows it to survive in a cold climate. 

• claws
• horns
• round eyes
• fur

Multiple Choice

This king snake looking just like the deadly coral snake to stay protected is an example of _________

• mimicry

• adaptation

• adoption

• camouflage

Multiple Choice

Possums play dead to trick their predators - is this a behavioral adaptation or a physical adaptation?

• Behavioral adaptation
• Physical adaptation

Multiple Select

Choose 3 physical adaptation examples listed below.

• Birds fly south for the winter.

• A bird has a sharp beak.

• A bear hibernates in the winter.

• A fish has scales on its body.

• A tiger camouflages itself in tall grass.

Multiple Select

Select all the Behavioral Adaptations:

• Migration

• Hummingbird Beak

• Hibernation

• Canine Teeth for ripping meat

• Skunk spray