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What are some factors that are necessary for the formation of a new species?
reproductive isolation: the gene pools of two populations must become separated for them to become new species. As new species evolve, populations become reproductively isolated from each other.
How are some organisms able to survive without sunlight and photosynthesis-?
Some organisms have adapted to their environment through evolution. These species went through slow changes so that they could survive where they are. In some cases, the environment changed around them slowly and they went through changes. This is what happened to many species in the deeper regions of the ocean.
What are some environmental disturbances?
Environmental disturbances are changes in the environment that cause lasting and major changes to the ecosystem. Some examples are floods, fires, introduction of new species, windstorms, and insect outbreaks.
What are some negative effects of reintroduction of species on the environment?
Environments are constantly changing. When a species is taken out of an ecosystem, it changes the environment drastically. However, eventually, the environment and all organisms it contains regain balance through adaption. When the originally removed species returns, the balance is thrown off again. If the original species is not gone for a long enough period to cause huge changes, any negative effects of change can be quickly reversed. If the species is introduced after new balance is acquired, some negative effects may include decimation of adjusted species or natural resources.
When a species of organism only reproduces asexually. due to a change in the environment some organisms are starting to die. predict how the other organisms of the species will do?
A. they will probably die because they have the same genes
What is species that are sensitive to changes in the environment?
Species that are sensitive to changes in the environment are often referred to as "indicator species." These organisms, such as amphibians, certain fish, and some birds, reflect the health of their ecosystems; their presence or absence can signal shifts in environmental conditions. For example, amphibians are particularly vulnerable to pollutants, habitat loss, and climate change, making them valuable for monitoring ecological changes. Their sensitivity helps researchers assess the overall well-being of ecosystems and the impacts of human activities.
In many areas humans are a nonnative species what happens when a nonnative species is introduced into a given environment?
When a nonnative species is introduced into a new environment, it can disrupt the existing ecological balance by outcompeting native species for resources, predating on them, or introducing diseases. This can lead to decline or extinction of native species, changes in ecosystem structure, and loss of biodiversity. In some cases, nonnative species can also have economic and health impacts on human populations.
What happens if an environment is altered?
Then it is not the same. Some of the plants and animals may die or move out. New species may move in or increase in number.
How long does it take for a species to form?
It takes a certain amount of time depending on the creature. You cannot tell how long or how short it can be. It could take a generation or a thousand generations. It all depends on the environment. The traits that species acquire are determined by what the environment selects. If the environment changes rapidly, then the species is going to evolve more quickly to fit the new environment, or in some cases, the environment changes too quickly for the species to evolve in which extinction can occur.
How does variation in a species help the species survive?
As each new generation is produced, genetic variation may be introduced into a population. The more genetic variation in a population, the more likely it is that some individuals might have traits that will be advantageous if the environment changes.
Is introduced species the same as invasive species?
No, introduced species and invasive species are not the same. An introduced species is any non-native species that has been brought to a new environment, either intentionally or accidentally. Invasive species, on the other hand, are a subset of introduced species that cause harm to the ecosystem, economy, or human health by outcompeting native species or disrupting ecological balances. Not all introduced species become invasive; some can coexist peacefully within their new environments.
What are some examples of useful changes in your environment?
scratch paper
