This item is my proof item, which I include in every picture to verify that it is an original picture that took, though in some pictures only a corner or blurry image can be seen, as it is difficult to take pictures at some angles or of moving animals.

This plant is an example of a eukaryote. A eukaryote is an organism made of eukaryotic cells, which are more complex than the alternative, prokaryotic, and contain membrane-bound organelles such as the nucleus.

This lemon tree is an example of asexual reproduction. Asexual reproduction is a process by which an organism creates offspring independently, not needing a mate. While this process is typically faster and easier than sexual reproduction, but leads to a lack of genetic variation in the populace. This lemon tree was grown from a branch that broke from another lemon tree, and then grew into a new lemon tree, thereby reproducing without any type of gamete fertilization taking place.

This picture shows a container of pollen. Pollen is the vehicle used by plants in sexual reproduction to convey gametes to the eggs in other plants, and in mainly transported through pollinating animals. It is, effectively, the sperm of plants.

On the inside of the flower shown is an example of the stigma and style of the carpel. These parts of the flower are in the reproductive system, and the stigma collects pollen, while the style connects the stigma and the ovary, where the eggs are.

This poison ivy is an example of an adaptation in a plant. An adaptation is a change a population that makes more fit for survival and reproduction. The poison ivy plant has adapted through toxins to better defend itself from predators and harm.

This gecko is an example of an adaptation in an animal. An adaptation is a change a population that makes more fit for survival and reproduction. The gecko has adapted through camouflage to hide form predators.

The ants in this image are examples of animals with segmented bodies. An animal with a segmented body is divided into several parts, as can be seen by how the ant is made up of four major segments.

The two flowers in this image are examples of genetic variation within a population. Genetic variation is having several different alleles for different traits in a population, and is vital to the ability of the organism to adapt to new challenges. The different colors demonstrate different alleles for the trait, making these flowers of the same species an example of genetic variation.

Brown hair is an example of a dominant trait. A dominant trait presents in the phenotype so long as it is present, overruling the recessive trait, and is typically represented by a capital letter when writing out the genotype. In humans, brown hair is a dominant trait.

This "Hitchhiker's Thumb" is an example of a recessive trait. Recessive traits, typically represented by a lower case letter when writing genotypes, and do not present in the phenotype unless the dominant trait is absent. The Hitchhikers thumb is a recessive trait in humans.

This plant is an example of an autotroph. Autotrophs like this plant use photosynthesis to create their own energy out of sunlight, water, and CO2. This plant carries this process to gain sustenance, making it an autotroph.

This bird is an example of a heterotroph. Heterotrophs gain nutrition and energy from other organisms, rather than making it themselves like plants do through photosynthesis. This bird, like all animals, is an example of heterotrophy because it eats insects and plants for sustenance.

This gecko and the insect are examples of predation, which is predatory behavior or hunting. The gecko eats insects, and hunts the insect in the picture. This makes it an example of predation.

This spiderweb, and the implied spider that made it, is an example of an ecological niche. The niche is the role in an ecosystem that an organism occupies. The spider controls insect populations using its web.

The bird is an example of an endotherm. Endotherms are animals that self-regulate their body temperature, commonly referred to as hot-blooded creatures. Birds self-regulate their temperature, ratehr than solely depending on external factors, making them endotherms.

This insect is an example of an ectotherm, which relies on external factors, such as the sun or warm rocks to regulate body temperature. This is commonly referred to as "cold-blooded," and examples include most insects and reptiles.

Within this tree is the xylem. Xylem is tissue within the plant that transports water and nutrients up the plant, in the vascular system. It is also a great word for hangman, as it is short and uses obscure letters.

Ants are an example of a keystone species. A keystone species is vital to the ecosystem it is in, and without it the ecosystem would change drastically. The ants play a vital role in the ecosystem, making them a keystone species.

This mosquito is an excellent example of parasitism. Parasitism is a symbiotic relationship in which one species or individual benefits at the expense of another. Since mosquitoes steal blood for sustenance, and leave behind the well-known itchy bites, they are parasites.

This chipmunk contains within it lipids used for energy storage. Lipids are used in the bodies of animals for long-term energy storage, often in the form of fat which can both insulate the organism and be used for energy in times of need. This makes lipids useful to organisms in many ways, but energy storage is the major use, ad is demonstrated in the chipmunk, just like all animals.

This spider is an example of bilateral symmetry. Bilateral symmetry in an organism means that the organism can be divided along a single line of symmetry, with one side being a duplicate of the other. As this spider is symmetrical on both sides, it is an example of bilateral symmetry.

In this image, the ant is an example of an exoskeleton. An exoskeleton is a structure on the outside of the body which gives the same structural support as an internal skeleton, and is found in many invertebrates.

The lemon tree is an example of a C3 plant. C3 refers to the process of carbon fixing during photosynthesis when converting CO2 into glucose. It is the most common type of plant on earth, at about 95% of species, however the process does leave the plant more vulnerable to hot, dry environments.

ATP is the energy used by organisms for cellular functions, and to make it cellular respiration is needed. The plants in this image perform cellular respiration, a process which converts glucose (made by photosynthesis) into ATP in a multi-part process that takes place in the mitochondria and cytoplasm of the cell.

As a result of the aforementioned cellular respiration, all plants contain ATP, including the one in the image. This Adenosine Triphosphate in a vital component in cellular processes such as active transport across the cell membrane.

On a microscopic level, within each cell, and further within each cell wall, is a phospholipid bilayer that is both hydrophobic and hydrophilic. To be hydrophilic, literally "water-loving," means to be drawn to or attracted to water. The heads of a phospholipid are hydrophilic, and form a wall that faces the outside and inside of the cell. Between the layers are phospholipid tails, which are "water-fearing," and face the inside of the cell membrane so as to avoid the water on both sides of the cell membrane. This creates a water-less layer in the center of the cell membrane that is vital to its functionality. This phenomenon is present in all uni- or multi-cellular organisms.