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Acid in water
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Plants and animals that live in water create some amount of acid in the water. The carbon dioxide that plants and animals release into the water makes the water acidic and unsafe for living organisms. This is why the water of captive aquatic animals and plants must be changed often.

Subject:
Life Science
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Laszlo Ilyes (None;)
Date Added:
05/16/2007
Adaptations in the intertidal zone
Conditions of Use:
No Strings Attached
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In the intertidal zone organisms are exposed to periods of varying moisture, sunlight, and wave forces. Many organisms have specialized structures or behaviors that allow them to live in this constantly changing and often harsh environment.

Subject:
Life Science
Geoscience
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Katie Hale (California State University, Fullerton;Student, Biological Sciences)
Date Added:
01/05/2007
Adult beetle
Conditions of Use:
No Strings Attached
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After entering the pupal stage, the adult darkling beetle will emerge. The beetles can then mate and lay eggs, which will hatch into mealworm larvae.

Subject:
Life Science
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
N/A N/A (None;)
Date Added:
09/19/2007
Adult butterfly anatomy
Conditions of Use:
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The butterfly can fly around using its wings and sees where it is going through its eyes. The spiracles allow the butterfly to breathe and the legs are what it uses to walk or crawl around on. The antennae help the butterfly know where it is going. The proboscis is what the butterfly uses to drink nectar from flowers.

Subject:
Life Science
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Shannon Murphy (Earth's Birthday Project;Program Development)
Date Added:
01/01/1998
Adult frog
Conditions of Use:
No Strings Attached
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The adult frog now lives on land and has nostrils and lungs to breathe air. It also has front and hind legs to hop around on. This frog can start the life cycle over again by laying eggs and reproducing.

Subject:
Life Science
Ecology
Forestry and Agriculture
Geoscience
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Harmen Piekema (None;)
Date Added:
05/28/2005
Adult milkweed bug
Conditions of Use:
No Strings Attached
Rating

Once milkweed bugs have grown into adults, they can mate and lay eggs. They tend to lay eggs on soft, protective material.

Subject:
Life Science
Ecology
Forestry and Agriculture
Geoscience
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Bruce J Marlin (None;)
Date Added:
01/01/2005
Adult zebra fish in a tank
Conditions of Use:
No Strings Attached
Rating

The adult zebra fish is the final stage in the zebra fish life cycle. At this point, the adult can lay eggs and a male zebra fish will fertilize them.

Subject:
Life Science
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Katie Hale (California State University, Fullerton;Student, Biological Sciences)
Date Added:
01/08/2007
Alchemy: Distillation
Conditions of Use:
No Strings Attached
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Science in its earliest beginnings consisted of a practice called alchemy. Alchemy includes the study of chemistry, biology, astronomy, spirituality, physics, and art. Distillation or experiments in purification of substances may have been a part of the practice of alchemy.

Subject:
Ecology
Forestry and Agriculture
Geoscience
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
N/A N/A (None;)
Date Added:
12/24/2005
Algae on a rock in the intertidal zone
Conditions of Use:
No Strings Attached
Rating

Algae are a collection of a millions of photosynthetic protists. These algae are red because of a special pigment. They cement themselves onto rocks in moist areas.

Subject:
Life Science
Ecology
Forestry and Agriculture
Geoscience
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Katie Hale (California State University, Fullerton;Student, Biological Sciences)
Date Added:
01/12/2007
Algal blooms
Conditions of Use:
No Strings Attached
Rating

Algae are producers. This means that they make their own energy and food and do not need to eat other organisms to gain energy and live. Algae use the sun, water, and carbon dioxide to go through photosynthesis and make their own energy to grow, bloom, and reproduce.

Subject:
Life Science
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
N/A N/A (None;)
Date Added:
08/28/2005
Aluminum can
Conditions of Use:
No Strings Attached
Rating

Aluminum cans can be recycled to reduce waste commonly found on roadsides. This will help reduce the amount of energy companies put out to make new cans as well.

Subject:
Ecology
Forestry and Agriculture
Geoscience
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Jon Sullivan (None;)
Date Added:
03/19/2000
Amaryllis anthers
Conditions of Use:
No Strings Attached
Rating

The anther is a part of the stamen, the male part of a flower. It produces pollen so that bees and other insects can help spread pollen to other flowers.

Subject:
Life Science
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
AndríŠ Karwath (None;)
Date Added:
03/25/2005
Anemone at the California rocky intertidal zone
Conditions of Use:
No Strings Attached
Rating

Anemones are carnivores and use their tentacles to move food into their mouths. Their tentacles contain stinging cells to kill prey. Sea anemones attach to rocks in lower and middle intertidal zones and are vulnerable to drying out.

Subject:
Geoscience
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Katie Hale (California State University, Fullerton;Student, Biological Sciences)
Date Added:
01/04/2007
Animal Defenses: Gecko
Conditions of Use:
No Strings Attached
Rating

Animals such as some geckos, lizards, and salamanders can shed their tails to escape a predatory attack. This process is called autotomy. The missing tail eventually grows back.

Subject:
Life Science
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Jialiang Gao (None;)
Date Added:
11/11/2007
Animal Defenses: Zebra
Conditions of Use:
No Strings Attached
Rating

Zebras generally stay in herds together. Zebras standing together may tend to look like one very large animal to predators. Also, predatory attacks send the zebras running in every direction. The stripes could confuse the attacker as to which animal it is chasing after, leaving it without any food in the end.

Subject:
Life Science
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
AndríŠ Karwath (None;)
Date Added:
10/08/2005
Animal Products: Pearl necklace
Conditions of Use:
No Strings Attached
Rating

Oysters are important to the environment because they help filter out some of the toxins and trash in water. When something irritates the oyster's insides, it secretes a substance to coat the irritant. A pearl is then formed. Humans wear pearls as jewelry.

Subject:
Life Science
Ecology
Forestry and Agriculture
Geoscience
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
N/A N/A (None;)
Date Added:
06/05/2006
Animal Studies: Leech
Conditions of Use:
No Strings Attached
Rating

One reason why leeches are considered to be annelids is because they have segmented bodies. Leeches suck blood from animals to get food. They release an anesthetic into the animal they are feeding on so that the animal doesn't realize they are feeding on them.

Subject:
Life Science
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Chris Schuster (None;)
Date Added:
05/27/2005
Animal Studies: Turtle
Conditions of Use:
No Strings Attached
Rating

This turtle has a back full of green, mossy algae. When the turtle is stationary in the water, it can camouflage itself to look like a moss-covered rock.

Subject:
Life Science
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
John O'Neill (None;)
Date Added:
01/03/2008
Animal hole
Conditions of Use:
No Strings Attached
Rating

Many animals (gophers, squirrels, rabbits, etc) dig holes to escape predators and for shelter against harsh environmental conditions, such as intense sunlight.

Subject:
Life Science
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Katie Hale (California State University, Fullerton;Student, Biological Sciences)
Date Added:
01/01/2007
Anole lizard
Conditions of Use:
No Strings Attached
Rating

Anole lizards are reptiles because they are covered in scales. These scales are used as protection for the lizard and help the lizard retain water in its body.

Subject:
Life Science
Ecology
Forestry and Agriculture
Geoscience
Material Type:
Diagram/Illustration
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
California State University, Fullerton
Video and Image Data Access (VIDA) Collection
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Paul Hirst (None;)
Date Added:
08/26/2006