Animalscaretips
- What causes species diversification?
- What could causes the rapid diversification of lineages?
- What are ecological conditions?
- Why would one lineage lead to millions of species and the other to only 400?
- What is the role of the environment in adaptive evolution?
- How does adaptive evolution occur?
- What is diversification in investment?
- What is basic ecological?
- What are the 4 major ecosystem processes?
- What is the ecological condition of Asia?
- What are two major factors that contributed to the explosion in the diversity of insect species?
- How does evolution produce new and complex features?
- What do you think happened during the Cambrian explosion that led to the increase in species of organisms on Earth?
- What is ecological adaptation?
- What 3 conditions are needed for biological evolution?
- What are examples of rapid environmental changes?
What causes species diversification?
There are two main mechanisms for change which will reduce biodiversity within a population: Genetic drift: The change in the composition of a gene pool as a result of a random or chance event. Natural selection: The change in the composition of a gene pool as a result of differentially selective environmental ...
What could causes the rapid diversification of lineages?
More frequent adaptive evolution during rapid diversification may be caused by adaptation to a diverse range of new ecological niches [1].
What are ecological conditions?
“Ecological condition” refers to the state of ecological systems, which includes their physical, chemical, and biological characteristics and the processes and interactions that connect them.
Why would one lineage lead to millions of species and the other to only 400?
Why would one lineage lead to millions of species and the other to only 400? Opportunity knocks: One possibility is that the now-diverse lineage happened to be in the right place at the right time. The environment presented opportunities, and the lineage was able to take advantage of them.
What is the role of the environment in adaptive evolution?
Adaptive evolution pertains to evolutionary changes in an organism that make it suitable to its habitat. The changes result in an increased chance of survival and reproduction. The changes enable the particular organism to fit to an environment.
How does adaptive evolution occur?
Natural selection only acts on the population's heritable traits: selecting for beneficial alleles and, thus, increasing their frequency in the population, while selecting against deleterious alleles and, thereby, decreasing their frequency. This process is known as adaptive evolution.
What is diversification in investment?
Diversification is the practice of spreading your investments around so that your exposure to any one type of asset is limited. This practice is designed to help reduce the volatility of your portfolio over time. ... One way to balance risk and reward in your investment portfolio is to diversify your assets.
What is basic ecological?
Ecological concepts are general understandings (or facts) about ecosystems and ecosystem management. Ecological principles are basic assumptions (or beliefs) about ecosystems and how they function that are informed by the ecological concepts.
What are the 4 major ecosystem processes?
A brief introduction to the basic ecosystem processes: water cycle, mineral cycle, solar energy flow, and community dynamics (succession). Monitoring these 4 processes tells you whether landscape health is improving or deteriorating, long before damage or improvement become obvious.
What is the ecological condition of Asia?
Population growth and economic development contribute to many environmental problems in Asia. These include pressure on land, habitat destruction and loss of biodiversity, water scarcity and water pollution, air pollution, and global warming and climate change.
What are two major factors that contributed to the explosion in the diversity of insect species?
Sexual selection and sexual conflict (ix) are two processes that are widespread in insects, and there is comparative evidence linking both to increased diversification.
How does evolution produce new and complex features?
How can evolution produce complex organs like the eye? ... Generation after generation, natural selection acts upon each structure within an organ like the eye, producing incremental improvements in the process. Each tiny change in a structure is dependent upon changes in all the other structures.
What do you think happened during the Cambrian explosion that led to the increase in species of organisms on Earth?
The reasons for this are still debated, but a leading theory is that the amount of oxygen in the atmosphere had finally reached levels that allowed large, complex animals to exist.
What is ecological adaptation?
Any physiological, behavioural or morphological attribute of an organism that enables it to. survive and reproduce in its respective habitat is called as an ecological adaptation.
What 3 conditions are needed for biological evolution?
The essence of Darwin's theory is that natural selection will occur if three conditions are met. These conditions, highlighted in bold above, are a struggle for existence, variation and inheritance. These are said to be the necessary and sufficient conditions for natural selection to occur.
What are examples of rapid environmental changes?
Human-induced rapid environmental change (HIREC) poses a threat to the persistence of many species and populations through factors such as climate change, habitat loss or fragmentation, increased human harvesting, exposure to novel biotic (e.g., predators, competitors, pathogens) or abiotic (e.g., pollutants) stressors ...
