Big Idea 1: Evolution

#2 An adaptation in an animal is a physical or behavioral change an animal does in order to survive. The Henkel's Leaf Tailed Gecko has adapted to have a tail that looks much like a leaf so that it could blend into its environment better.

#3 An adaptation in a plant is a physical or behavioral change a plant does in order to survive. The cactus in the photo above has adapted to grow thorns to keep herbavores or other pests from eating it.

#6 An angiosperm is a plant that bares fruit in order to develop and spread seeds. In the picture above, the pyracantha grows poisonous berries usually during the winter.

#8 An aracnid is an invertebrate with eight legs and a two segmented body. For example, a spider in the picture above is an aracnid. 

#10 Arthropods are invertebrate animals that have an exoskeleton, segmented body, and jointed apendages. Ants, for intance, have an exoskeleton that covers the head, thorax, and abdomen. 

#11 Artificial selection is the act of forcing two animals to breed for a certain desired trait. A good example of artificial selection would be the laborador retriever. It has been breed for hundreds of years to be able to swim, retrieve, and withstand rough climates.

#14 A chordate is any animal with a backbone and notachord. The unique legless lizard has been found to have both.

#18 There are many differences between monocot and dicot plants, but the most promonent of them all is the structure of the leaves. In monocots, such as grass and rice (first two), the viens of the leaves are parallel. In dicots, like peach trees and lemon trees (last two), the leaves have veins that branch out.

 #20 Fungi is a kingdom that includes those organisms that have chitin cell walls, no chloroplasts, survive on organic molecules, etc. Athlete's foot, seen above, is a fungal infection of the skin.

#23 Gnathostomes are any animal that has a jaw structure and are vertebrea. What better example of a jawed creature could there be, but the Schneider's smooth-fronted caiman! Its strong jaws help it prey on small animals in South America.

#24 A gymnosperm is a seed producing plant that does not bare fruit. That is, it has naked seeds that are guarded by a cone. Above is a monterey pine cone.

#25 A gymnosperm is a seed producing plant that does not bare fruit. In the photo above are the leaves of a douglas fur, a popular gymnosperm. It grows cones and is an evergreen tree.

 #28 A modified leaf is a leaf of a plant that has been adapted in a unique way. In the Aloe plant above, the leaves also double for defence. They have thorns and photosynthesize.

#29 A modified root is a root that has adapted in a unique way for its environment. For example, vines usually grow in rough places, so they grow over and cling onto things to keep balanced.

#30 A modified stem is a stem of a plant that has bbeen adapted in a unique way. The rose bush above has adapted its stem to grow thorns to ward off predators.

#38 A seedless vascular plant is one that uses spores and does not produce seeds or flowers. Ferns, for instance, only disperse spores for reproduction on their leaves.

#39 A tetrapod is any four legged vertebrea. The calico cat above both has a backbone and four limbs.