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Organizational complexity is how multiple entities of an organization differentiate among themselves. It refers to the number of resources that are involved in a division, project, or team. If the size of the organizational structure or system is huge that organization is said to be complex.

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Homeostasis is the tendency to maintain a stable and relatively constant internal environment. The body maintains homeostasis for many factors in addition to temperature. For instance, the concentration of various ions in your blood must be kept steady, along with pH and the concentration of glucose. If these values get too high or low, you can end up getting very sick.

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Growth is a process that happens during the entire life of a living being and it's also related to cell proliferation. An increase in cell number occurs by a precise cellular reproductive mechanism called mitosis (The increase in cell size and number of them is due to the cells dividing repeatedly). The size and changes in the shape of a developing organism depend on the increase in the number and size of cells that make up the individual.  However, in other cases, the cell volume increases when a division doesn't happen.
All of this may eventually determine the size and shape of the organisms.

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Metabolism describes all the chemical processes that go on continuously inside your body to keep you alive and your organs functioning normally, such as breathing, repairing cells, and digesting food. These chemical processes require energy.

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Reproduction is the production of offspring, a process in which living organisms manage to chemically replicate themselves or pass on their genetic code. There are two main forms: sexual and asexual reproduction. It's a fundamental feature of all known life; each individual organism exists as the result of reproduction.

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Sexual:
It is a process carried out by some living beings (such as humans and animals), in order to procreate new living beings as offspring. Two beings participate, one female and the other male, of which the new living being takes genetical and physical characteristics.

Asexual:
Asexual reproduction is the way in which some plants and other organisms reproduce, one of the main characteristics is that the new organism is identical to the parent, in this type of reproduction no sperm or ovules are required, so in fission the parent organism divides in two to reproduce, or as sporulation where the being multiplies and finally the spores are released breaking a membrane, other examples are budding, cloning and fragmentation

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Homeostasis depends on negative and positive feedback loops triggered by stimuli.
It's a process in which the body tries to counteract unusual effects by reestablishing internal conditions (negative feedback). Positive feedback occurs when instead of counteracting the unusual, empowers it to allow certain processes such as childbirth.

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Irritability is the excitatory ability that living organisms have to respond to changes in their environment and to receive and respond to a stimulus. A stimulus is any change in the environment. The term is used for both the physiological reaction to stimuli and for the pathological, abnormal, or excessive sensitivity to stimuli.

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Evolution is a change in the characteristics of living things over time. As described by Darwin, evolution occurs by a process called natural selection. An adaptation is a trait that helps an organism survive and reproduce in a given environment.

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Movement is the change of position of the body of an organism. All living things move in some way. This may be obvious, such as animals that are able to walk, or less obvious, such as plants that have parts that move to track the movement of the sun. Living things move in a directed and controlled way.

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Breathing
Running
Eating
Walking
Growth
Moving from one place to another

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When growth is not properly regulated, anomalies and tumors may result. For example if the increase in the number of liver cells is abnormal, tumors of the liver (hepatomas), may result. In fact, one feature of malignant tumors, is the absence of usual growth patterns and rates.

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Regulation of temperature.
Arterial pressure regulation.
Regulation of water levels.
Defending against viruses and bacteria.

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Continuous movement: it occurs in each cell of a living organism, and it happens for its vital activities
Positional movement: this type of movement occurs in some organs
Total movement: in these one, the living organisms can move from a place to another in order to perform different activities.

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Anabolism:
It consists of the creation of body tissues and energy reserves. Anabolism contributes to the growth of new cells. Small molecules transform into larger and more complex ones such as carbohydrates or lipids.

Catabolism:
Catabolism is a series of chemical processes that lead to the breakdown of molecular compounds absorbed by the body to generate energy.

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It's based on the idea that all species are related and gradually change over time due to slight genetic variations. Through evolution, a group of organisms manages to survive by taking advantage of some heritable characteristics and gets to reproduce and pass this to the next generation. This theory was developed by a a British naturalist named Charles Darwin who became the founder of modern evolutionary studies.

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Touch movement: this happens when the leaflets of mimosa plant are touched, their reaction is to collapse in a successive order, after the petioles as if they wilt.

Sleeping and awake: in the mimosa plant and some leguminous, the leaflets approach to each other during darkness, this indicates sleeping movement and they get away from each other, that indicates awake movement

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Manisha, M. (2016, September 6). Movement of Living Organisms. Biology Discussion. https://www.biologydiscussion.com/living-organism/movement-of-living-organisms/52504

Characteristics of living organisms - Variety of living organisms - GCSE Biology (Single Science) Revision. (n.d.). BBC Bitesize. Retrieved September 2, 2021, from https://www.bbc.co.uk/bitesize/guides/zr46fg8/revision/1

Science Learning Hub Pokapu Akoranga Putaiao. (n.d.). Characteristics of living things. Science Learning Hub. Retrieved September 2, 2021, from https://www.sciencelearn.org.nz/resources/14-characteristics-of-living-things

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It allows organisms to react to their environment and survive to the changes in their surroundings.

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Fossils

Homologous structures

Embryonic development

Similarities in DNA and chromosomes

Artificial selection

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The closing of traps on a Venus flytrap or the leaf movements of a sensitive plant.

Children often become fussy when they have ear infections or stomach aches.

Plants tend to follow a light source if it is insufficient in their current position.

The stress that is felt when a living organism is in danger.

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What is evolution? (n.d.). Https://Www.Yourgenome.Org. Retrieved August 16, 2021, from https://www.yourgenome.org/facts/what-is-evolution

The Characteristics of Life. (n.d.). Https://Courses.Lumenlearning.Com. Retrieved August 16, 2021, from https://courses.lumenlearning.com/suny-wmopen-biology1/chapter/the-characteristics-of-life/

Wikipedia. (n.d.). Charles Darwin [Portrait]. https://es.wikipedia.org/wiki/Charles_Darwin

Evolution. (n.d.). [Illustration]. https://www.grupoalvic.com/es/cajon-evolution/

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An example of a metabolic reaction is when a person eats a spoon full of sugar. Once inside the body, carbohydrates are broken down into simpler molecules (glucose) releasing energy most of the time in form of ATP.
(In the case of plants this energy is produced by capturing solar energy)

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In cells:
The increase in size and changes in the shape of a developing organism depend on the increase of the number and size of cells that make it up. An increase in cell number occurs by a precise cellular reproductive mechanism called mitosis.
In plants:
In plants, much of the size increase occurs after cell division and results primarily in humid conditions.
In animals:
The growth of animals is more restricted in time than the one of plants, though cell division is generally distributed throughout the body of the organism.

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What is Irritability in Animals? Features and Types. (s. f.). lifepersona. Recuperado 16 de agosto de 2021, de https://www.lifepersona.com/what-is-irritability-in-animals-features-and-types

What is Irritability in Plants? (s. f.). lifepersona. Recuperado 16 de agosto de 2021, de https://www.lifepersona.com/what-is-irritability-in-plants#:~:text=Phototropism,most%20notorious%20example%20of%20phototropism.

TopperLearning. (2014, 4 junio). [Ilustración]. TopperLearning explain the term irritability with the help of an example - Biology - TopperLearning. http://images.topperlearning.com/topper/questions/230053_image002.jpg

kirov-bomj. (s. f.). [Ilustración]. kirov-bomj.ru Irritability of animals and plants. Irritability and movement of organisms. Irritability: Definition and Description. https://i0.wp.com/ours-nature.ru/new_site/img/2884942599/i_057.jpg

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* Bonner, John Tyler. (n.d) Reproduction. Retrieved August 16, 2021, from https://www.britannica.com/science/reproduction-biology
* (n.d) Oso con sus oseznos. Retrieved August 16, 2021, from https://www.ososwiki.com/imagenes-oso-con-sus-oseznos-jpg
*(n.d). Unicellular vs. Multicellular Organism. Retrieved August 16, 2021, from https://slidetodoc.com/unicellular-vs-multicellular-organisms-unicellular-vs-multicellular-organisms/

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Complex systems exist at different levels of organization that range from the subatomic realm to individual organisms to whole populations and beyond. They include, for example, molecules, cells, organisms, ecosystems and human societies.

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Biología 1, by Laura Lauría Baca, editorial: Patria, page 84-86 https://0-elibro-net.biblioteca-ils.tec.mx/es/ereader/consorcioitesm/40436?page=84

Metabolismo. (n.d.). RCHSD. Retrieved September 2, 2021, from https://www.rchsd.org/health-articles/metabolismo/

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Nicoletta Lanese. (2019). What Is Homeostasis?. 16/08/21, de Live Science Sitio web: https://www.livescience.com/65938-homeostasis.html

Khan Academy. (Unknown). Homeostasis. 16/08/21, de Khan Academy Sitio web: https://es.khanacademy.org/science/high-school-biology/hs-human-body-systems/hs-body-structure-and-homeostasis/a/homeostasis

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[Cells duplicating]. (s. f.). Journal Club. http://blog.pnas.org/2017/12/journal-club-cells-use-waves-to-regulate-mitosis-suggesting-similar-wave-dynamics-as-myriad-natural-phenomena/

Cancer Research UK. (2021, 7 mayo). How cells and tissues grow. https://www.cancerresearchuk.org/about-cancer/what-is-cancer/how-cancer-starts/how-cells-and-tissues-grow

Nature Portfolio. (s. f.). Cell Growth. Recuperado 16 de agosto de 2021, de https://www.nature.com/subjects/cell-growth

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Cellular: Comprises cells, the smallest unit of living matter.
Tissue: Set of cells that perform a certain function.
Organ:  Union of different tissues that full-fill a function.
System: Set of organs that collaborate in the same function.
Individual: Organism is made up of various systems.
Population: Set of individuals of the same species that live in the same area and at the same time.
Community: Set of populations that share the same space.
Ecosystem: Set of communities, the environment in which they live and the relationships they establish between them.

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Freepik. (2018, July 13). Organización celular en las plantas 2591596. https://www.freepik.es/vector-premium/organizacion-celular-plantas_2591596.htm

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