environmental changes, predators , diseases , competition !
Absolutely ! The human race is the only animal species on the planet that has hunted other species to extinction.
Extreme radiation events of the organisms that survive the mass extinctions as they evolve to occupy the niches abandoned by the organisms going extinct.
because of the interdependence of living things The extinction of one species or development of a new one often affect many others because of their interdependence in an ecosystem.
If its for online homework and theres an "All of the above" answer its that one fasho
As part of the environment of other organisms humans can have great effects on speciation. Especially adaptive radiation. As we contribute heavily to the extinction of some species other species flow into those open niches and radiate outwards to possible speciation.
Generally not. Tornadoes are generally to rare and too localized to have a significant affect on species. If a species is threatened by a tornado it is likely on the verge of extinction anyway.
For the most part, the extinction of the species would not really impact the world to much degree, besides the small disruption it would entail on the local ecosystem
Many animals would have to change habitats, and it could affect the population of a species in an area. It could also affect the attitude of inhabiting organisms towards outside organisms, which could also affect the population. I hope this helps!
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Every animal is a part of the food chain, so mass extinction can have very bad consequences for the species that survive. The surviving species must learn to work around the animal that has recently become extinct.
Global warming changes natural habitats making them unliveable for many species ==== Global warming was the first effect identified that was shown to lead to species extinction events. For instance, a mountain frog would migrate from lower to higher elevations annually to survive. The species is now extinct because of global climate instability. The frog reached the top of the mountain and it was still too warm and their species died, all of them; extinct. There is a difference between Mass Extinction and Global Extinction. Mass Extinction is where a large percentage of a species dies. -- This is like a plague that wipes out 90% of a species Global Extinction is where the entire population of a species becomes extinct. -- This is like the mountain frog, it is completely extinct -- Melting of the Methane Permafrost could release enough methane to kill all humans Total Extinction is where all species globally become extinct; including ourselves. -- A large asteroid, black hole on a trajectory with our solar system, a near region super-nova, super-volcano eruption, abnormally large Solar Mass Ejection, ...
HIV infects only humans. There are similar viruses that affect other species.