What does the term "survival of the fittest" mean?

When two organisms compete for shelter, the strongest will win.

Organisms that survive to reproduction are well adapted to their environment.

Species that are well adapted to their environment may become extinct.

Environmental changes do not influence species' survival.

Organisms that are best adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring. This concept is known as "survival of the fittest." It does not necessarily refer to physical strength, but rather the ability to successfully adapt to and thrive in a given environment.

The term "survival of the fittest" refers to the concept in evolutionary biology that organisms that are well adapted to their environment are more likely to survive and reproduce. It does not refer to physical strength, but rather to how well an organism is suited to its environment. The phrase was coined by Herbert Spencer and is often associated with Charles Darwin's theory of natural selection. It suggests that those organisms with advantageous traits, such as better camouflage, more efficient hunting strategies, or resistance to diseases, are more likely to have successful offspring and pass on their advantageous traits to future generations. Environmental changes can indeed influence species' survival, as changes in habitat, climate, food availability, or competition can affect an organism's ability to survive and reproduce.