Saturday, January 11, 2014

Big Idea 1


2. adaptation of an animal- An adaptation of an animal occurs over time so that the organism becomes better suited to survive. The puffer fish shown above demonstrates this because it has sharp quills to protect it from predators.



3. adaptation of a plant- An adaptation of a plant allows it to be better fitted for survival. The black berry bush branches exemplifies an adaptation because the thorns on the stems prevent most predators from harming the plant.



4. amniotic egg- An amniotic egg is an egg created by a amniote. An amniote is any vertebrate animal. Since chickens are amniotes, they lay amniotic eggs.




5. analogous structure- Analogous structures are the similar structures between two animals of different species. For example, a bird wing (shown in the picture) is an analogous structure when compared to a wing of an insect. Both are used for the same function, flying.




6. angiosperm- Angiosperms are any seed-bearing plant that have ovules that are encompassed in an ovary. Grass is an example of an angiosperm.




7. annelid- An annelid is any worm whose body is divided into segments. Annelids include worms, leeches, and polychaetes. Earthworms are annelids.




8. arachnid- Arachnids are arthropods from the Arachnida class. They are characterized by simple eyes and four pairs of legs. Arachnids include: spiders, ticks, and scorpions.




10. arthropod- A animal with an invertebrate, has a exoskeleton made of chitin, and a segmented body. Spiders, insects, and crustaceans are all arthropods. Ant are insects and are therefore arthropods.




11. artificial selection- Artificial selection is when certain breeding of animals and plants to form offspring with certain characteristics. Broccoli has evolved from wild mustard because of artificial selection.




12. bilateral symmetry- Bilateral symmetry is a quality of an organism when an axis can split the organism in half and have nearly identical sides. This starfish has five symmetry axis (one splitting down each tentacle).




21. gastropod- Gastropods are mollusks that have a muscular foot for moving, eyes, feelers, and they may have a shell. Gastropods include: snails, slugs, and limpet.




24. gymnosperm cone- Gymnosperms are plants that have their seeds encased in an ovary wall. Gymnosperm cones are hard and wood-like seeds such as pine cones. 




25. gymnosperm leaves- Gymnosperm leaves can be needle-like, very small, bunched around a stem, and long and narrow. This pine tree has needle-like leaves.




29. modified root of a plant- Vegetables such as carrots, beets, and turnips have been specifically modified to store more energy in the forum of carbohydrates.




30. modified stem of a plant- Plants, such as this small rose bush, have been modified for certain traits over time. The thorns on the stem helps to protect the plant from possible organisms that may damage the it.




32a. Organisms in different animal phyla- Phyla is the singular form of the word phylum. A phylum consists of different species of organisms but are related by common origin. Dogs are a species in a phylum.




b. Organisms in different animal phyla- The puffer fish is a different animal in a phylum. Like the dog, this fish has a similar way of survival. Both create energy by consuming food and have similar organs.




c. Organisms in different animal phyla- Ducks are another animal in a phylum. Like the dog and pufferfish, ducks have instincts for survival by creating energy and breeding to continue their species.




37. radial symmetry (animals)- Radial symmetry is shown in organisms in which a vertical line can be drawn through half of their body and both halves would resemble equal sides. This goose demonstrates radial symmetry.




39. tetrapod- A tetrapod is an organism with a vertebrate, four feet, and four legs. Turtles are tetrapods. 

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