Evolution is a change in species over time.
Species not always change over time such sponges :D
Adaptation is when a species is able to change over time to new changes in their environment.
The nonconstancy of species refers to the idea that species are not fixed entities but evolve over time through natural selection and other mechanisms. This concept, proposed by Charles Darwin, suggests that species can change and diversify in response to their environments, leading to the formation of new species and the extinction of others. It highlights the dynamic nature of life on Earth and the ongoing process of evolution.
Jean-Baptiste Lamarck proposed that species change over time through the inheritance of acquired characteristics. He believed that individuals could pass on traits they acquired during their lifetime to their offspring, leading to gradual changes in species over generations.
Charles Darwin
Charles Darwin
Linnaeus did not believe that species could change over time. He proposed the concept of fixed species, where each species had a distinct and unchanging form. This idea was influential in shaping early biological classification systems.
The mechanism that has been proven to show species change over time is natural selection, as proposed by Charles Darwin. This process involves the differential survival and reproduction of individuals with advantageous traits leading to changes in populations over generations.
Lamarck proposed that by selective use or disuse of organs, organisms acquired or lost certain traits during their lifetime. Then passed onto offspring-leading to change in species
The punctuated equilibrium hypothesis suggests that species often undergo long periods of evolutionary stability, or stasis, interrupted by short bursts of rapid change leading to new species formation. This model contrasts with gradualism, which posits a slow and steady accumulation of changes over time.
Charles Darwin proposed the theory of evolution by natural selection in his book "On the Origin of Species." This theory explains how species change over time through the process of natural selection acting on heritable variations.
Darwin proposed that over a long time, natural selection could lead to the gradual change and divergence of species from a common ancestor, resulting in the formation of new species through the process of adaptation to their environment.
It begins as a hypothesis, only after it has been thoroughly tested over time can it be called a theory. (Note that what non-scientists call a theory is actually just a hypothesis.)
Evolution is a change in species over time.
The theory of punctuated equilibrium proposed by Stephen Jay Gould and Niles Eldredge suggests that genetic change can cause species to evolve rapidly in short bursts, with long periods of stability in between, rather than gradually over time. This theory challenges the traditional view of gradualism in evolution.
Species not always change over time such sponges :D