How do invasive species affect the biodiversity Mcq?
10. How do invasive species affect the biodiversity? Explanation: Invasive species are the non-native species that invade healthy ecosystems and threaten the survival of the native species either by attacking them or competing with them for the habitat’s resources.
What are invasive species and how can they affect biodiversity?
Invasive species can change the functions of ecosystems. For example, invasive plants can alter the fire regimen, nutrient cycling, and hydrology in native ecosystems. Invasive species that are closely related to rare native species have the potential to hybridize with the native species.
What is biodiversity MCQ questions?
MCQ Questions on Biodiversity and Conservation
- How many biogeographic does India have? …
- Lime is generally added to _____ soil. …
- _______ has the maximum genetic diversity in India. …
- _________ is one of the most prevalent hotspots of biodiversity in India. …
- Galápagos finches are a good example of ____________
Which one of the following is the way for conservation of biodiversity?
Biodiversity can be conserved by: Preventing the cutting of trees. Putting a ban on hunting of animals. Efficient utilisation of natural resources.
Which is the main cause for the loss of biodiversity?
Biodiversity loss is caused by five primary drivers: habitat loss, invasive species, overexploitation (extreme hunting and fishing pressure), pollution, climate change associated with global warming. In each case, human beings and their activities play direct roles.
What is the main threat to biodiversity?
Climate change was ranked as a 6% risk to Earth’s biodiversity. WWF’s Living Planet Report 2020 has ranked the biggest threats to Earth’s biodiversity. The list includes climate change, changes in land and sea use and pollution. The WWF used data from over 4,000 different species.
How is this species affecting biodiversity?
Invasive species can change the food web in an ecosystem by destroying or replacing native food sources. The invasive species may provide little to no food value for wildlife. Invasive species can also alter the abundance or diversity of species that are important habitat for native wildlife.
What threat do invasive species pose to biodiversity?
According to the World Conservation Union, invasive alien species are the second most significant threat to biodiversity, after habitat loss. In their new ecosystems, invasive alien species become predators, competitors, parasites, hybridizers, and diseases of our native and domesticated plants and animals.
What affects biodiversity?
Biodiversity change is caused by a range of drivers. A driver is any natural or human-induced factor that directly or indirectly causes a change in an ecosystem. … Important direct drivers affecting biodiversity are habitat change, climate change, invasive species, overexploitation, and pollution (CF4, C3, C4.
Which of the following are types of biodiversity Mcq?
Explanation: The three types are species diversity (number of the different species found in location), Genetic diversity (genetic variations within a species) and Ecological diversity (variations in the ecosystems of regions). Explanation: Biodiversity helps in maintaining ecological stability.
What are the values of biodiversity Mcq?
1. How many types of economical values are there for biodiversity? Explanation: Economically there are two main types of values of biodiversity are there. They are, a) Use value, and b) Non use value.
Which of the following is not a cause for loss of biodiversity Mcq?
Keeping animals in zoological parks is not a cause for loss of biodiversity rather it is a method of conservation of biodiversity.
What are the different threats to biodiversity explain the biodiversity conservation methods?
The biodiversity, diversity in life forms, suffers greater threat from degradation, habitat fragmentation; spreading of invasive species; indiscriminate use of natural resources; climate change; pollution within aquatic environment and water flows.
How do human activities affect species diversity?
How do human activities affect species diversity? Over-exploitation, pollution and habitat conversion are the main threats to species diversity. They cause a gradual loss of species on local, regional and global levels. Additionally, the introduction of species into new ecosystems destroys natural balance.