Table of Contents
- 1 What allows organisms to have more reproductive success?
- 2 Is the reproductive success of an individual relative to other members of the population?
- 3 Which statement about the individuals within a population that survive to reproductive age is consistent with Darwin’s theory of natural selection?
- 4 How are differential reproductive success rates used in evolution?
- 5 When do you use the term reproduction rate?
What allows organisms to have more reproductive success?
The idea of natural selection is that traits that can be passed down allow organisms to adapt to the environment better than other organisms of the same species. This enables better survival and reproduction compared with other members of the species, leading to evolution.
What does it mean if members of a population live long enough to reproduce?
chapter 15
| Question | Answer |
|---|---|
| Which statement about the members of a population that live long enough to reproduce is consistent with the theory of natural selection? | They are the ones that are best adapted to survive in their environment |
What determines which individuals are more likely to survive and reproduce?
In most sexually reproducing organisms, chromosomes occur in pairs, with one member of the pair being inherited from each parent. DNA: Deoxyribonucleic acid. Changes in DNA result in mutations, which may be beneficial, neutral, or deleterious to the organism.
Is the reproductive success of an individual relative to other members of the population?
Fitness would be described as reproductive success of an individual relative to other members of a population. It relates to “survival of the fittest” because it’s not necessarily about being strong or weak, but the most reproductive.
What has to happen for reproduction to be successful?
Reproductive success is defined as the passing of genes onto the next generation in a way that they too can pass those genes on. For example, the offspring produced as a result of normal mating are an example of reproductive success, because they too can pass their genetic material on to the next generation.
When members of a population live long enough to reproduce in the theory of evolution by natural selection What do they pass on to their offspring?
Darwin came to understand that any population consists of individuals that are all slightly different from one another. Those individuals having a variation that gives them an advantage in staying alive long enough to successfully reproduce are the ones that pass on their traits more frequently to the next generation.
Which statement about the individuals within a population that survive to reproductive age is consistent with Darwin’s theory of natural selection?
Which statement about the individuals within a population that survive to reproductive age is consistent with Darwin’s theory of natural selection? They are the ones best adapted to exist in their environment.
What are individuals that are well adapted to their environment will survive and produce?
Individuals with adaptations that are well-suited to their environment can survive and reproduce and are said to have high fitness. Individuals with characteristics that are not well-suited to their environment either die without reproducing or leave few offspring and are said to have low fitness.
Is lamarckism dead?
Lamarck gradually turned blind; he died in Paris on 18 December 1829.
How are differential reproductive success rates used in evolution?
Evolutionary scientists might, for example, want to study whether short height or tall height is more conducive to a species’ continued survival. By documenting how many individuals of each group produces offspring and in what numbers, scientists arrive at a differential reproductive success rate.
Why is sexual reproduction important to the survival of the population?
There are several possible explanations, one of which is that the variation that sexual reproduction creates among offspring is very important to the survival and reproduction of the population. Thus, on average, a sexually reproducing population will leave more descendants than an otherwise similar asexually reproducing population.
Which is the best definition of reproductive success?
Reproductive success is defined as an individual’s production of offspring per breeding event or lifetime. This is not limited by the number of offspring produced by one individual, but also the reproductive success of these offspring themselves.
When do you use the term reproduction rate?
The term is used when comparing the successful reproduction rates of two groups of individuals in the same generation of a species population, each exhibiting a different genetically determined characteristic or genotype. It is a term that is central to any discussion of natural selection — the cornerstone principle of evolution.