8.)Endosperm- Inside the seeds of most flowering plants during fertilization is the endosperm. It surrounds the embryo and provides nutrition in the form of starch. Endosperm can also be used for human nutrition. This wheat kernel is an example of endosperm because it is a seed from a flowering plant(wheat) and has an endosperm produced during fertilization. Also, it can be ground up to flour to use for making bread.
20.)r-Strategist- r-selected organisms are usually fit for unstable and fluctuating environments. These organisms mature early, have short lifespans, and reproduce few times but producing many offspring. This dandelion is an example of an r-selected organism because it will only live for a few years, it matures within 15 weeks, and will produce many offspring.
14.)Parasitism- Parasitism is a type of relationship where one organism uses and harms another organism for its own welfare. These privet leaves are an example of parasitism because they are being eaten by some sort of parasite and thus they are perishing while the parasite benefits.
9.)Introduced Species- An introduced species is a non-native species that has grown manually by humans and sometimes even accidentally. This Bamboo is an introduced species from Asia that people plant for reasons such as decoration, and the bamboo shoots can make use for building. Bamboo is one of the most efficient carbon absorbing plants on the planet.
17.)Pioneer Species- A pioneer species is the first to inhabit a previously destroyed environment and "pave the way" for ecological succession that will finally lead to a stable environment. This ambiguous ditrichum moss is an example of a pioneer species because it can sustain in harsh conditions after a destroyed environment.
12.)Mutualism- Mutualism is a type of ecological relationship that consists of two organisms that benefit from helping each other. Thus, bees will pollinate these camellias and receive nutrients while the camellias will be able to reproduce.
18.)Population- A population is the sum of all organisms of a species in one geographical area and have the ability of inter breeding. This house fly is an example of population because although we cannot see every housefly living in Sacramento in this picture, we can see that this fly adds to the population. Also, it is an example of population because flies have the capability of inter breeding.
6.)Competition- Competition is a relationship in which organisms must compete in order to obtain resources such as food, water, and space. Interspecific competition refers to members of two different species, while Intraspecific refers to members of the same species competing. These two non blooming rose stems are an example of intraspecific competition, as they are of the same species competing for limited water and nutrients.
10.)Keystone Species- A keystone species is a species that has strong influence on an environment. It plays a role in maintaining ecological structure, however it also negatively effects other organisms. Mistletoe is an example of a keystone species because it has a negative effect on the trees that it grows on and eventually kills them if not cut down. However, it also acts as a food source for many animals, and animals rely on it to transfer pollen between plants.
5.)Commensalism- Commensalism is an ecological relationship in which one organism benefits while the other is neither benefited nor negatively affected. Thus, this blue jay nesting in a tree is an example of commensalism because the tree is giving the bird a home which benefits the bird however the tree is not getting any real benefits.
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