Animalscaretips
- What is the relation between reproduction and extinction?
- How does the extinction of organisms relate to evolution?
- How is extinction related to adaptation of species?
- Why do all organisms need to pass through a reproductive lifespan in their existence?
- What is the main cause of extinction in plant and animal species?
- How does biological extinction occur identify the factors that cause the extinction and discuss the occurrence of each?
- Why do species go extinct instead of adapting and surviving?
- How does the environment affect the extinction and evolution of species?
- How is extinction related to natural selection?
- What happens when a species becomes extinct?
- What causes species extinction?
- How does extinction create new niches?
- What is the difference between life expectancy and life span?
- What do you understand by the term lifespan of a living thing explain with two examples?
- What the world would become if the reproductions among living organisms stop?
What is the relation between reproduction and extinction?
The slower their reproductive cycle, the higher the risk of extinction for large grazing animals such as deer and antelope that are hunted by humans, a new study has found. This understanding of the importance of reproductive rates could help conservation managers zero in on which species are in the greatest peril.
How does the extinction of organisms relate to evolution?
The role of mass extinction in evolution. At the most basic level, mass extinctions reduce diversity by killing off specific lineages, and with them, any descendent species they might have given rise to. ... But mass extinction can also play a creative role in evolution, stimulating the growth of other branches.
How is extinction related to adaptation of species?
If it changes more rapidly, few adaptive walks will be completed, and the population will be poorly adapted most of the time. If it changes very rapidly selection may be inadequate to restore adaptation quickly enough, and the population will dwindle and eventually become extinct.
Why do all organisms need to pass through a reproductive lifespan in their existence?
Early reproduction lowers the chance of dying without offspring, but later reproduction may allow organisms to have more or healthier offspring or to provide better care. Members of some species reproduce only once (semelparity), while members of other species can reproduce multiple times (iteroparity).
What is the main cause of extinction in plant and animal species?
The main cause of the extinctions is the destruction of natural habitats by human activities, such as cutting down forests and converting land into fields for farming. Due to human activities, populations of many species have become small and isolated.
How does biological extinction occur identify the factors that cause the extinction and discuss the occurrence of each?
Extinction occurs when species are diminished because of environmental forces (habitat fragmentation, global change, natural disaster, overexploitation of species for human use) or because of evolutionary changes in their members (genetic inbreeding, poor reproduction, decline in population numbers).
Why do species go extinct instead of adapting and surviving?
Why do some species survive while others go extinct? Extinction is often caused by a change in environmental conditions. ... If conditions change more quickly than a species can evolve, however, and if members of that species lack the traits they need to survive in the new environment, the likely result will be extinction.
How does the environment affect the extinction and evolution of species?
Change in an organism's environment forces the organism to adapt to fit the new environment, eventually causing it to evolve into a new species. ... They eventually become different species. Moreover, if there is a change in the environment of one group it does not necessarily occur in the environment of the other.
How is extinction related to natural selection?
If the environment changes rapidly, some species may not be able to adapt fast enough through natural selection. ... An invasive species, a disease organism, a catastrophic environmental change, or a highly successful predator can all contribute to the extinction of species.
What happens when a species becomes extinct?
“Extinction itself is part of the normal course of evolution.” The effect a species would have if it were to fade from existence depends largely on its role in the ecosystem. ... “When a predator goes extinct, all of its prey are released from that predation pressure, and they may have big impacts on ecosystems.”
What causes species extinction?
The main modern causes of extinction are the loss and degradation of habitat (mainly deforestation), over exploitation (hunting, overfishing), invasive species, climate change, and nitrogen pollution.
How does extinction create new niches?
Extinctions can also empty ecological niches and make an adaptive radiation possible. For example, open niches vacated by dinosaur extinctions may have allowed mammals to radiate into these positions in the terrestrial food web. Specialization: Specialization may subdivide a single niche into many new niches.
What is the difference between life expectancy and life span?
While both terms relate to the number of living years, they actually define very different concepts. While the term lifespan refers to the maximum number of years an individual can live, life expectancy refers to an estimate or an average number of years a person can expect to live.
What do you understand by the term lifespan of a living thing explain with two examples?
Life – span is a period from birth to death of a living thing. Example : The life-span of some insect is few hours in rainy season. They die after rainy season. The human has the life-span is 60 – 70 years.
What the world would become if the reproductions among living organisms stop?
Living things are able to reproduce themselves. If organisms fail to do this, populations will diminish and disappear as their members die from old age, disease, accidents, predation, etc. ... Organisms produced in this way display little or no genetic variation from the parent organism and are called clones.
