Batesian Mimicry

This is a picture of a snake. Snakes are an animal that utilize batesian mimicry. Some species of harmless snakes will mimic the sound of poisonous snakes. For example in Central America the Scarlet King Snake, which is non-venomous, mimics venomous Eastern Coral Snake. Batesian mimicry is a form of mimicry where the harmless species has began to imitate the harmful species' warning signals to scare away predators. 

Ectotherm

This is a picture of a baby lizard. Lizards are ectotherms, meaning they are dependent on external sources of body heat, such as sunlight or a heated rock. Ectotherms are called cold-blooded animals. They include fish, amphibians, reptiles, and invertebrates. Ectotherms are also different from endotherms in that they require less food for animals of the same size, however they cannot deal as well in cold environments.

Analogous Structures

The picture on the left is of a bird and the picture on the right is of a flying insect. The bird's wing and the insect's wing are examples of analogous structures because they have the same function, but the bird and insect are not related. Analogous structures have similar function, but differ in anatomy and origin.

Littoral Zone

This is a picture of some fish from a pet store. The fish represent the littoral zone, because they come to the shallow water to feed on algae and aquatic plants. The littoral zone is the water nearest shore, where the sunlight shines all the way through to the sediment at the bottom. This allows aquatic plants to grow and animals such as the crab to live in both a water and land environment. 

Technical Error!!

My dog ate the duck that has been in all of my pictures so far. It was hers, so I'm not surprised.
My next pictures will have a different duck in them, just so you are not confused.

C4 Plant

This is a picture of sugar. The sugar stands for sugar cane which is a C4 plant. C4 plants are different from other plants in that they are more efficient with water, but less efficient with light. This is why C4 plants grow best and make a lot of energy in hot, dry climates.

Gymnosperm Cone

This is a picture of a pine cone from my back yard. This pine cone is  a gymnosperm cone, part of the reproduction process of the pine tree. A gymnosperm cone is the gametophyte of the plant. There is a difference between female gymnosperm cones and male ones. The female cones are usually larger and lower on the tree, while the male cones are smaller and farther up in the branches. They are arranged in this way because gravity is the main pollinator of the gymnosperm. The pollen producing male cones release the pollen to fall onto the seed generating female cones where the seed is then fertilized and released.