Table of Contents
- 1 How is biodiversity affected by natural selection?
- 2 Does natural selection make organisms more complex and perfect?
- 3 What is Darwin’s theory of natural selection based on?
- 4 Why is natural selection more effective in large populations?
- 5 Does natural selection make an organism better?
- 6 Why natural selection favors animals with the greatest reproductive success?
- 7 Which is more likely to have high biodiversity?
- 8 What are the reasons for the loss of biodiversity?
How is biodiversity affected by natural selection?
Natural selection can not create biodiversity. These variation will survive while natural selection, selects the poorly adapted variations for extinction. Those biodiversity will lead to a change in the population. These variations must exist before natural selection can occur.
Which of the following is the most likely effect of natural selection on a population?
What effect does natural selection have on the allele frequency of a population? It increases the frequency of alleles that improve a species’ survival in a particular environment.
Does natural selection make organisms more complex and perfect?
First, natural selection is not all-powerful; it does not produce perfection. If your genes are “good enough,” you’ll get some offspring into the next generation — you don’t have to be perfect.
How does natural selection explain why some organisms are more likely to survive and reproduce than other organisms?
According to Charles Darwin’s theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.
What is Darwin’s theory of natural selection based on?
Darwin’s concept of natural selection was based on several key observations: Traits are often heritable. In living organisms, many characteristics are inherited, or passed from parent to offspring. (Darwin knew this was the case, even though he did not know that traits were inherited via genes.)
What is the theory of evolution by natural selection?
In the theory of natural selection, organisms produce more offspring than are able to survive in their environment. This means that if an environment changes, the traits that enhance survival in that environment will also gradually change, or evolve.
Why is natural selection more effective in large populations?
Deleterious alleles can reach high frequency in small populations because of random fluctuations in allele frequency. In this sense, selection is more “effective” in larger populations.
Which of the following would occur if natural selection was the only evolutionary force acting on a population?
Transcribed image text: QUESTION 2 Which of the following would occur if natural selection was the only evolutionary force acting on a population? The population would become less adapted to its environment.
Does natural selection make an organism better?
Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success.
Does natural selection make organisms perfect?
Natural selection is a driving force in evolution and can generate populations that are adapted to survive and successfully reproduce in their environments. However, natural selection cannot produce the perfect organism.
Why natural selection favors animals with the greatest reproductive success?
Natural selection is the process by which individuals with characteristics that are advantageous for reproduction in a specific environment leave more offspring in the next generation, thereby increasing the proportion of their genes in the population gene pool over time.
What is most likely to happen to a species that is not suited to its environment?
if organisms cannot adapt to the changes in their ecosystem, they may move to another location. If they will not move, the species may become threatened, endangered or extinct.
Which is more likely to have high biodiversity?
Large area. Regions that are a part of a large, connected land mass are likely to have higher biodiversity than those that are geographically isolated. Small islands that are far away from the mainland of a continent will have fewer species than large islands that are near the coast.
Why do we value biodiversity in the world?
Humans have many reasons to value biodiversity, including anthropocentric reasons and ecocentric reasons. Anthropocentric reasons to value biodiversity include the many potentials for different lifeforms to provide scientific information, recreational benefits, medicine, food, or other materials that are useful to us.
What are the reasons for the loss of biodiversity?
A major reason for the loss of biodiversity is that natural habitats are being destroyed. The fields, forests, and wetlands where wild plants and animals live are disappearing. Land is cleared to plant crops or build houses and factories.
How does biodiversity affect the growth of plants?
The plants need healthy soil to grow. Fungi help decompose organisms to fertilize the soil. Bees and other insects carry pollen from one plant to another, which enables the plants to reproduce. With less biodiversity, these connections weaken and sometimes break, harming all the species in the ecosystem .