biodiversity
Reading Passage 1
Biodiversity in Ecosystems
An ecosystem is a place where living and nonliving things work together. When there is high biodiversity, it means there are many different organisms like plants, animals, and tiny living things. Each kind has a job. Some are food for others, some recycle, and some are predators that keep balance.
A system with high biodiversity has more stability. If one kind of organism goes away, another can help take its place. A system with low biodiversity is not as strong. If one species disappears, the whole ecosystem can be harmed.
The health of organisms depends on biodiversity. In a biodiverse ecosystem, there are more choices for food, and problems like diseases do not spread as easily. In low biodiversity, there are fewer choices and more danger if one kind is lost.
Protecting biodiversity helps keep ecosystems strong and healthy for all organisms, including people.
Reading Passage 2
Biodiversity in Ecosystems
Ecosystems are made up of many living things that interact with each other and their surroundings. When an ecosystem has high biodiversity, it means there are many different organisms, such as plants, animals, and microorganisms, living together. Each of these species plays a role in keeping the system balanced. Some organisms provide food, others recycle nutrients, and some act as predators that keep populations in check.
A system with high biodiversity tends to have greater stability. If one species decreases in number, other species can often fill its role. In contrast, a system with low biodiversity is more vulnerable. If a single species disappears, the balance of the entire ecosystem may be disrupted. This can lead to a collapse in food chains and a loss of important resources for other organisms.
The health of organisms also depends on biodiversity. In a biodiverse ecosystem, species are less likely to face pests or diseases spreading quickly because many different organisms limit problems from growing. More food sources are available, and competition is balanced. This allows populations to adapt to changes. On the other hand, organisms in a less diverse ecosystem may struggle if conditions shift or if a key species is lost.
Protecting biodiversity helps scientists and communities support strong, sustainable ecosystems. This not only benefits the environment but also supports the health of every organism, including humans.
Reading Passage 3
Biodiversity in Ecosystems
An ecosystem depends on the complex interactions of many species and the roles they fulfill. High biodiversity means that a wide range of organisms, from producers to decomposers, work together to maintain balance. These relationships support energy flow, nutrient cycling, and resilience against disturbances.
Greater biodiversity strengthens stability by allowing ecosystems to adapt to change. If one species declines, another can assume its function, preventing large-scale disruption. In ecosystems with low biodiversity, however, the loss of even a single species may destabilize food webs, reduce available resources, and weaken resilience.
The health of organisms reflects the level of biodiversity. Diverse ecosystems can slow the spread of disease, reduce extreme competition, and provide multiple food sources. This diversity allows populations to withstand environmental pressures such as climate change, invasive species, or habitat loss. Low-diversity systems lack this flexibility and are far more likely to collapse under stress.
Protecting biodiversity ensures the sustainability of ecosystems that adapt to change and continue supporting all organisms, including humans. Maintaining biodiversity is essential for the long-term survival of life on Earth.