Ecosystems

Hi!!! Im guessing you are in Grade 7 because i have this question too. Well the answer is simple. i got it from Figure 2.17 on page 51 .... :

Modern communities often destroy natural habitat when they expand.

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When the interrelated food chains in an ecosystem are represented together, the model is called a food web. It shows the complex network of feeding relationships among different species in an ecosystem, illustrating the flow of energy and nutrients through the environment. This interconnected structure highlights the importance of each organism's role in maintaining the balance of the ecosystem.

1. Mutualism: Both species benefit from the relationship. For example, bees pollinating flowers and receiving nectar in return.
2. Commensalism: One species benefits while the other is unaffected. An example is barnacles attaching themselves to whales, deriving support and transportation without harming the whale.
3. Parasitism: One species benefits at the expense of the other. A common example is ticks feeding on the blood of a host organism.

Decompose.

Nitrogen is stored in the biosphere primarily in the atmosphere as N2 gas. It is also found in living organisms in proteins and nucleic acids, as well as in the soil in the form of organic matter, ammonia, nitrates, and nitrites. Nitrogen-fixing bacteria play a key role in converting atmospheric nitrogen into a form that can be utilized by plants and animals.

Amoebas are typically found at the bottom of the food chain as primary consumers. They feed on microscopic organisms like bacteria and algae, playing a vital role in breaking down organic matter and recycling nutrients in ecosystems. Larger organisms then consume amoebas as a food source, continuing the transfer of energy up the food chain.

This is an example of geographic isolation, where different environments have shaped the distribution of species over time. Tigers prefer forests and grasslands in Asia, while lions thrive in savannas and grasslands in Africa. These natural differences have resulted in distinct ranges for each species.

The Longhorn beetle and grass have a symbiotic relationship where the beetle feeds on the grass, helping to maintain its health by preventing overgrowth. In return, the grass provides the beetle with a food source and habitat for shelter and reproduction. This relationship benefits both species by ensuring a balanced ecosystem.

Otters are aquatic mammals known for their streamlined bodies and webbed feet, while water rats, or water voles, are rodents that live near waterways. Otters are carnivorous predators, while water rats are herbivores. Otters are known for their playful behavior, while water rats are more elusive.

This process is called ecological succession. It involves a series of predictable changes in the species composition and community structure of an ecosystem over time following a disturbance. It typically progresses from pioneer species, which can establish in harsh conditions, to more complex and stable communities.

Yes, paua is a type of abalone found in New Zealand. Abalone is a general term that refers to a variety of shellfish species, while paua specifically refers to the Haliotis iris species found in New Zealand.

Yes, using a different shape could be helpful for visualizing energy changes at each trophic level. For example, a bar graph or a flowchart could also effectively represent energy flow through trophic levels. The choice of shape should align with the specific goals and clarity of the representation needed.

Corruption, lack of infrastructure, political instability, and limited access to basic services such as healthcare and education can all negatively affect the development of a country. These factors can hinder economic growth, social progress, and overall stability within a nation.

There are three most common symbiotic relationships. They are Commensalism, Mutualism, and Parasitism.

Commensalism:

Good for one organism, but the other is unaffected.

Mutualism:

Good for both organisms.

Parasitism:

Good for one organism, but bad for the other.

One thing you have to remember about Symbiotic relationships is that no one ever dies. Even when you are a parasite you don't want your host to die, because if it did, the parasite would also die.

There are also two more types of relationships. They are less common though. They are both considered Competition, but they are split into two different groups, Intraspecific and Interspecific.

Frequent fires can disrupt succession in a community by preventing later successional species from becoming established. This can maintain the dominance of early successional species that are adapted to fire, altering the expected trajectory of succession. Additionally, frequent fires can reduce the amount of organic matter and nutrients in the soil, which can further impact the composition and structure of the community.

The Carbon-Oxygen cycle is valuable to the biotic community because it helps regulate the levels of carbon and oxygen in the atmosphere, which are essential for the survival of many organisms. Plants take in carbon dioxide during photosynthesis and release oxygen, while animals and microorganisms release carbon dioxide during respiration. This cycle maintains the balance of gases necessary for life on Earth.

Sunflowers are producers, which means they can photosynthesize and convert sunlight into energy to make their own food. They are not consumers, which are organisms that consume other organisms for energy, or decomposers, which break down organic matter into nutrients.

Scavengers and decomposers play a very important role in the ecosystem. They are also known as cleaners of the environment as they feed on the dead and thus prevent various diseases to spread.

Apicomplexans are heterotrophic organisms, meaning they obtain their nutrition by consuming other organisms. They are parasitic protists that often infect the cells of their hosts to obtain nutrients.

Mastigophorans are heterotrophic, meaning they rely on organic substances obtained from their environment for energy and nutrients. They typically feed on other microorganisms or organic matter in their surroundings.

No, Levolin syrup is not an antibiotic. It is a bronchodilator that helps to relieve symptoms of asthma, bronchitis, and other respiratory conditions by relaxing the muscles in the airways to improve breathing.

Good pioneer species are typically fast-growing, have rapid reproductive cycles, and can thrive in harsh environmental conditions. They are able to colonize and establish themselves in barren or disturbed areas, preparing the habitat for the growth of more complex plant communities. Additionally, pioneer species often have the capacity to improve soil conditions through processes like nitrogen fixation.

Human disturbance refers to any action or activity by humans that interferes with the natural environment, habitats, or ecosystems. This can include activities such as pollution, deforestation, urban development, and noise pollution, which can disrupt the balance and harm the indigenous flora and fauna in an area.

Nonliving things found in an ecosystem include air, water, sunlight, soil, rocks, and minerals. These nonliving components play crucial roles in supporting the living organisms within the ecosystem by providing essential resources and physical structures. Examples of nonliving things in an ecosystem also include temperature, rainfall, and weather patterns.

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