Heterotroph

Definition: An organism that is unable to produce its own energy and needs to consume organic matter or other organisms to survive.

Connection: In this picture you can see a Sandhill Crane standing on the other side of the river. Unable to produce its own energy Sandhill Crane's feed on grains, small invertebrates and insects.

Source Cited

https://www.savingcranes.org/sandhill-crane.html

Stigma & Style of Carpel

Definition: The stigma of a flower in the receptive tip of a carpel; this is where the flower receives pollen and where the pollen germinates.The style is a tube like structure in the flower that connects the stigma to the ovary. 

Connection: In the picture you can see the stigma and style of carpel of this flower. The stigma would be the yellowish-black part at the top of the yellow string which is the style of carpel.

Sources Cited

Wikipedia contributors. "Stigma (botany)." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 6 May. 2013. Web. 27 Jul. 2013.

Tropism

Definition: When an organism, or one of its parts, turns or bends away from an external stimuli. 

Connection: In this picture you see a snail, usually when you touch a snails eye, the eye will quickly pull back into the snail's body which is an example of tropism.

Sources Cited

"tropism." The American Heritage® Dictionary of the English Language, Fourth Edition. 2003. Houghton Mifflin Company 19 Jul. 2013 http://www.thefreedictionary.com/tropism

Lichen

Definition: a type of fungus that commonly forms a crust-like patch on trees and rocks.

Connection: In this picture you see one species of Lichen growing on a rock wall in the Arnold Arboretum

Ectotherm

Definition: any animal that depends on external sources such as sunlight or heated surfaces to regulate body temperature.

Connection: This pictures shows a small frog which is an example of an ectotherm. Frogs use their environment to regulate their body temperature as needed.

Sources Cited

"ectotherm". Encyclopædia Britannica. Encyclopædia Britannica Online.
Encyclopædia Britannica Inc., 2013. Web. 19 Jul. 2013
<http://www.britannica.com/EBchecked/topic/1516418/ectotherm>.

Parasitism

Definition: parasitism is a relationship between two organisms in which one benefits from and the other is negatively affected.

Connection: the holes in the leaves show that another organism has been feeding off of this particular plant. This is an example of parasitism because the organism feeding off the plant benefits because it now has a source of food, while the plant is negatively affected because it is being eaten. 

Population

Definition: a population is a group of one species that live in the same general area, and are able to reproduce.

Connection: Here you see a group of geese who live in Houghton's Pond; because they live in the same are and are able to reproduce they can be considered a population.

Cuticle Layer of a Plant

Definition: the cuticle layer of a plant is a protective film that covers the plant's outer most layer (epidermis).

Connection: This plants waxy leaves shows it has a cuticle layer. This film protects plants from their surrounding environment.

Sources Cited

Wikipedia contributors. "Plant cuticle." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 10 Jun. 2013. Web. 13 Jul. 2013.