Big Idea 1

2. adaptation of an animal - An adaptation of an animal is a quality, trait, or behavior that allows an animal to survive and/or thrive in its environment.  This chameleon is able to move its eyes to have full 360 degree vision around its body.

4. amniotic egg - Amniotic eggs are those that are laid on land.  It contains a shell, yolk, an embryo, and is impenetrable to water.  Chicken eggs are laid on water, so they are amniotic.

5. analogous structure - An analogous structure is a feature of two animals that are similar in function, but are not exactly the same in structure.  This parrot's wings are analogous to wings of a butterfly.

6. angiosperm - An angiosperm is a plant which produces seeds.  It is also known as a flowering plant.  These gerbera flowers have seeds in the middle of the flower, so they are angiosperms.

8. arachnid - An arachnid is an animal that is an invertebrate.  In addition, they all have eight legs.  This spider is an example of an arachnid because it has eight legs and is an invertebrate.

10. arthropod - An arthropod is any animal with an exoskeleton.  These crickets, although they are not very visible because they are the same color as the log, are arthropods because they are insects, and all insects have exoskeletons.

12. bilateral symmetry - An organism with bilateral symmetry is one with two halves that are mirror images of each other when the organism is cut in half.  This southern magnolian leaf represents bilateral symmetry because by dividing the leaf in half vertically, two mirror images arise.

14. chordate - A chordate is an animal with a backbone.  All birds have backbones, so this owl represents a chordate.

16. coelomate - A coelomate is an animal with a coelom, which is a body cavity meant for keeping organs and the digestive tract together.  All vertebrates are coelomates, and this legless lizard is a vertebrate, so it is also a coelomate.

17. deuterostome - A deuterostome is an animal which develops an anus as the first opening during embryonic development, followed by a mouth as the second opening.  All vertebrates are deuterostomes, so this vulture is an example of one.

20. fungi - Fungi are a kingdom of eukaryotes that lacks vascular tissue and chloroplast, and reproduces with spores.  The mold on these apples is an example of fungi because it does not have vascular tissue and chloroplast while reproducing with spores as well.

22. genetic variation - Genetic variation is the differences in alleles of a certain gene.  These flamingoes are pink, but other flamingoes can be white as well.

29. modified root of a plant - Plants with modified roots evolve to help in the survival of the plant.  Carrots have very large taproots in order to store food such as carbohydrates.

34. organisms in same class but different orders  (Class mammalia, 4 pictures)

a.) Order Edentata (anteater) - Anteaters are members of the order Edentata.  Animals in this order are defined as having little to no teeth.  In addition, their joints are more articulated than any other mammals, and the superorder that this order is in, Xenarthra, literally means "strange joints."

b.) Order Carnivora (tiger) - Tigers are members of the order Carnivora.  All animals in this order can eat meat, although some are primarily herbivorous.  They have large and sharp teeth to be able to eat and chew the meat.  Also, their brains are generally large in size.

c.) Order perissodactyla (zebra) - Zebras are members of the order perissodactyla.  Animals in this order have an odd number of toes, but what truly defines them is that their toes are hooved.  They mostly eat plants, but do not have multiple stomachs like cows do because they are able to digest the cellulose in their intestines.

d.) Order Primates (mongoose lemur) - Mongoose lemurs are members of the order primates.  Animals in this order descended from animals that used to live in tropical forests.  Some qualities that they possess include shortened snouts and binocular vision, which means that two eyes are used for vision.

39. tetrapod - A tetrapod is an animal with four limbs.  This eastern bongo has four limbs, so it is a tetrapod.

40. unicellular organism - A unicellular organism is any organism that is made of only one cell.  Bacteria, a unicellular organism, live on pretty much anything, including the worm, lid, table, pencil, and my hand.

41. vestigial structure - A vestigial structure is a part of an animal's body that has either lost or changed its original function.  Ostriches do not use their wings, but they still have them.  These wings are vestigial structures.