Question

1. explain what darwin meant by the phrase survival of the fittest. your answer this is a required question 5. the principle that all modern species were derived from common ancestors is known as your answer 6. which of the following ideas is part of darwins theory of evolution? (pick 3) there is variation in nature. fewer organisms are produced than can survive. there is a struggle for existence. species change over time. 7. according to darwins theory, what happens to individuals whose characteristics are not well suited to their environment? your answer

Explanation:

Question 4

Darwin's "survival of the fittest" refers to the idea that organisms with traits (physical or behavioral) that are better adapted to their environment are more likely to survive, reproduce, and pass on those advantageous traits to their offspring. Fitness here means an organism's ability to survive and reproduce in its specific environment. So, in the struggle for existence (due to limited resources, competition, etc.), those with favorable adaptations (the "fittest") are more likely to survive and propagate their genes, while those less adapted are less likely to do so.

The principle that all modern species have evolved from common ancestors is known as common descent. This is a key concept in Darwin's theory of evolution, suggesting that over time, through the process of natural selection and other evolutionary mechanisms, species have diverged from a shared ancestral lineage.

• "There is variation in nature": Darwin observed that within a species, individuals show variation in traits. This variation is important because it provides the raw material for natural selection. Some variations may be more favorable in a given environment.
• "There is a struggle for existence": Since more organisms are produced than can survive (due to limited resources like food, space, etc.), organisms must compete with one another (and with the environment) for survival. This struggle is a driving force for natural selection.
• "Species change over time": Darwin's theory posits that over long periods, as favorable traits are selected for and passed on, species gradually change (evolve) and may give rise to new species.

The statement "Fewer organisms are produced than can survive" is incorrect. In fact, more organisms are produced than can survive, which leads to the struggle for existence.

Answer:

In Darwin's terms, "survival of the fittest" means organisms with traits better adapted to their environment are more likely to survive, reproduce, and pass on those traits. Fitness relates to an organism’s ability to survive and reproduce in its environment, with better - adapted (fitter) organisms having an advantage in the struggle for existence (due to limited resources, competition, etc.) and being more likely to propagate their genes.

Question 5