THE ECOSYSTEM: INTERRELATIONSHIPS BETWEEN
Ecology is the study of how organisms interact with their environment, including predator-prey relationships; reproduction; migration; use of resources such as . An understanding of the relationships between an organism and its environment can be attained only when the environmental factors that can be experienced. Relationship between organisms and their environment are based on certain principles which are summarized as follows: 1. Everything influencing the life.
Abiotic Components in an Ecology Temperature — It is one of the major factors which directly affects the life in an area.
The temperature on earth follows a general geographic trend. It is highest at the equator and keeps on decreasing as we move towards the poles. Temperature affects the various enzymatic reactions in living organisms.
As a result, the biodiversity observed in the planet varies along the temperature gradient.
Competency Relationships Between Organisms and the Environment | BioEd Online
Water — It is the next important factor that affects life on earth. Water supports most of the life forms on earth. For example, 70 percent of the human body is made up of water. Similarly, all other organisms require water for temperature regulation and many other physiological activities.
Ecology | Relationship Between Organisms And Their Environment
It has been observed that the species richness is maximum near water bodies. Light — We already know that light from the sun is the ultimate source of energy for living beings on earth.
Plants capture this energy and manufacture food by the process of photosynthesis. This energy is then passed on to the rest of the organisms in the environment by the food chain and food web.
- THE STUDY OF THE RELATIONSHIP BETWEEN ORGANISMS AND THEIR ENVIRONMENT
- Relationship between Organisms and their Environment (28 principles)
- Ecology: Organisms and Their Environment
Soil — The type of soil available in an area determines the type of vegetation. This directly results in the type of organisms that can be found.
It also contains all the minerals needed by various living beings including plants to support their life. An Organism is a contiguous living system that includes archaeon, animals, plants and fungus. Organisms are capable of some degree of response to homeostasis, growth, reproduction and stimuli. Organisms consisting of more than one cell is termed as multicellular organisms and organisms with the single cell are termed as unicellular organisms. A group of cells is termed as a tissue.
There are four basic types of tissues that are found in animals namely muscle tissue, connective tissue, epithelium and nerve tissue. Several types of tissue together form an organ. They perform a specific function. Some of the common characteristics of the cell include reproduction by cell division, response to internal and external stimuli, metabolism and cell contents. Adaptation of organisms to the Environment. All the organisms possess the ability to adapt to the environment through a process of biological variation.
This results in the enhancement of ability and chance of survival. Behavior is one of the important aspects of adaptation. It includes the way they behave, the way they look and how they are built. For instance, the animals living in the deserts. They retain moisture either through the food they consume or through burrow into the moist earth to absorb water into their bodies.
Primary producers convert light energy or, rarely energy from chemosynthesis, into chemical bonds. Consumers rely on producers for their energy sources. All food chains begin with producers, followed by primary consumers, secondary consumers and tertiary consumers. Energy Flow through Ecosystems Energy flow in marine and terrestrial ecosystems is discussed in this resource from The Habitable Planet.
Model Ecosystems Use this interactive module developed by McGraw Hill to learn about energy flow in forest ecosystems. The Effect of Populations on Ecosystems The beginning teacher knows how populations and species modify and affect ecosystems. Species can affect one another and ecosystems in a variety of ways. Communities tend to become more complex over time. This process, known as succession, leads to changes in soil, and the populations of organisms that are present.
Primary succession takes place when organisms gradually inhabit a bare substrate such as rockleading to the development of soil and gradual increases in the numbers of kinds and species.
Over time, as conditions change, different groups of organisms become prevalent. Secondary succession occurs in an area where a disturbance, such as fire, has occurred. In general, early stages of succession are characterized by fast-growing or weedy species that tolerate extreme conditions, known as r-selected species. Gradually, these early invaders are replaced by other species K-selected species that compete more effectively in the environment that has been colonized and changed by the weedy colonizers.
Invasive species are those that are introduced into a new habitat, where they out compete native species that share similar niches.
Invasive species can have drastic effects on biodiversity and energy flow in communities.