Front

What is the main reason why the formation of new species is difficult to study?

Back

The fossil record of species formation is incomplete.

Front

What is the study of embryos from fertilization to birth called?

Back

Embryology.

Front

What is the relationship between natural selection and evolution?

Back

Natural selection is the mechanism of evolution.

Front

How many species of lizards seem to have beneficial adaptations in the given graph?

Back

2.

Front

What term is used when a species completely dies out?

Back

Extinct.

Front

What is evolution?

Back

The process by which different kinds of living organisms develop and diversify from earlier forms.

Front

What is natural selection?

Back

The process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a fossil?

Back

The preserved remains or traces of a once-living organism.

Front

What does the term 'adaptation' mean in the context of evolution?

Back

A trait that helps an organism survive and reproduce in its environment.

Front

What is the significance of the fossil record in studying evolution?

Back

It provides evidence of past life forms and their changes over time.