1. Endosperm

Corn kernals give a good representation of endosperm.  Endosperm is the part of the seed that acts as a food store for the developing plant embryo, usually containing starch with protein and other nutrients.  Other examples of this include inside of a coconut and grain seeds.

2. Territorial behavior

In this image, the grizzly bear demonstrates territorial behavior by becoming aggressive towards the wolves who are trying to capture the prey he has killed.  The wolves display this behavior as well because they are trying to take the bear's prey away from him and scare the bear away.  There is more than one wolf present showing that the wolves could be making an effort to instill fear in the bear.  However, the bear continues to show aggression in order to stand his ground and keep the prey he has killed.

3. Radial symmetry

Sea stars physically display radial symmetry.  Radial symmetry is symmetry around a central axis.  This organism could be divided into halves that are very similar to each other.  Other examples of this symmetry include butterflies, jellyfish, corals, etc.

4. Pollen

Pollen is produced by a variety of flowers.  Flowers have male parts called stamens that produce a sticky powder called pollen.  Pollen is yellow and consists of microscopic grains.  Each grain contains a male gamete that can fertilize the female ovule, to which pollen is transported by the wind, insects, or other animals.

5. Keystone species

Beavers are a good example of a Keystone species.  Keystone species is a species on which other species in an ecosystem largely depend, such that if it were removed, the ecosystem would change drastically.  By constructing dams, beavers create an ecosystem used by a wide variety of species.

6. Genetic variation within a population

This photo displays a population of minnows.  It shows how there can be genetic variation within a population because among the minnows, there are different colors, sizes, etc. shown.  The genes that each fish receives when born decides what physical traits that fish will have.  This happens not just with fish, but with populations of species everywhere including humans.

7. Flower ovary

In this picture, it shows a flower ovary which is located right by my forefinger.  A flower ovary is the part of the female reproductive organ of the flower.  Specifically, it is the part of the pistil which holds the ovule(s) and is located above or below or at the point of connection with the base of the petals and sepals.

8. Commensalism

This image displays commensalism.  Commensalism is an association between two organisms in which one benefits and the other derives neither benefit nor harm.  In this picture, the fish can get the benefit of resting on the plant shown.  The plant, however, does not receive any benefit nor harm from the fish doing so.

9. Ectotherm

This turtle is an example of an ectotherm.  An ectotherm is an animal that is dependent on external sources of body heat.  Often when you see turtles, frogs, lizards, etc. in a pet store, they have a heat lamp as a way to keep them warm and comfortable.

10. Population

The foliage shown in this image demonstrate a population of that particular plant.  A population is groups of individuals belonging to the same species that live in the same region at the same time.  The picture displays an abundance amount of one particular plant in the same region, from the same species, and living at the same time.

11. Mutualism

This image displays a butterfly on top of a flower in the woods.  This is a prime example of mutualism.  Mutualism is symbiosis that is beneficial to both organisms involved.  Both the butterfly and the flower benefit from each other.  The organisms practice cooperation with each other and receive individual benefit when interacting with one another.

12. Endotherm

This picture shows my father.  My father is an example of an endotherm.  An endotherm is an animal that is dependent on or capable of the internal generation of heat; a warm- blooded animal.  There are many examples that could be used for this concept such as other family members, animals, etc.

13. Dominant Vs. Recessive Phenotype

This photo displays a difference in eye color.  One eye has a dominant color, brown, and the other has a recessive color, blue.  Eye color is an example of a dominant vs. recessive phenotype.  Dominant vs. recessive refer to the genotypic interaction of alleles in producing the phenotype of the heterozygote.  The key concept is genetic: which of the two alleles is present in the heterozygote is expressed, such that the organism is phenotypically identical to one of the two homozygotes.

14. Autotroph

This photo shows algae growing on the ground in the woods.  Algae is a great example of an autotroph.  An autotroph is an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

15. Auxin producing area of a plant

This image displays a plant in the wilderness.  The area of the plant shown is representation of the auxin producing area of a plant.  The auxin producing area of a plant is the stem, buds, and root tips which produce the plant hormone, auxin, which promotes cell elongation.

16. Heterotrophy

This picture displays my dog, Laci.  She is an example of a heterotroph.  A heterotroph is an organism deriving its nutritional requirements from complex organic substances.  Humans are another example of a heterotroph.

17. Cambium

This picture shows the layers of a tree stump.  These layers represent what cambium is.  Cambium is a cellular plant tissue from which phloem, xylem, or cork grows by division, resulting in secondary thickening.

18. Frond

The photo I have taken shows ferns.  The leaves of the ferns are good examples of what a frond is.  A frond is the leaf or leaflike part of a palm, fern, or similar plant.

19. C4 Plant

This picture is a corn on the cob field.  This field represents a C4 Plant.  A C4 Plant is most efficient  at photosynthesis in hot, sunny climates.

20. Coevolution

This photo shows a bug on top of a flower.  This is an example of coevolution.  Coevolution is the influence of closely associated species on each other in their evolution.  This can be found in many areas of nature and occurs every day.

21. Cuticle layer of a plant

This image shows a leaf with a hard covering.  This demonstrates the cuticle layer of the plant.  The cuticle layer is a water- impervious protective layer covering the epidermal cells of leaves and other parts while also limiting water loss.

22. Predation

This photo shows a bird on a power line looking for bugs, small animals, etc. for a source of food.  The action of this bird is an example of predation.  Predation is the preying of one animal on others.  This is something common that will be seen in nature.

23. Pollinator

This photo is of a honey bee.  The honey bee is an example of a pollinator.  A pollinator is the biotic agent that moves pollen from the male anthers of a flower to the female stigma of a flower to accomplish fertilization.

24. Basiodiomycete

This picture is of a mushroom that I have found in the woods.  This mushroom is a representation of a basiodiomycete.  A basiodiomycete is a fungus whose spores develop in basidia.  These include the majority of familiar mushrooms and toadstools.  They can be found in many locations such as woods, yards, lakes, swamps, etc.

25. Lichen

This is a picture of a plant that has grown on a tree.  The plant is an example of a lichen.  A lichen is a simple slow- growing plant that typically forms a low crustlike, leaflike, or branching growth on rocks, walls, and trees.  They can be found in many areas such as the woods.