Question

Species evolve and change over time. Their success depends on factors such as genetic variability and environmental conditions. Modern land plants and green algae have many characteristics in common, and both are very successful in their respective habitats.

One current theory suggests that modern land plants developed from green algae. Which piece of evidence below supports this theory?

Question 6 options:

Land plants and green algae both carry out asexual and sexual reproduction.


Land plants and green algae contain chlorophyll made up of similar sequences of amino acids.


Land plants and green algae carry out cellular respiration.


Land plants and green algae are made up of cells containing similar cell structures.

Answer 1

The piece of evidence that best supports the theory that modern land plants developed from green algae is:

**Land plants and green algae contain chlorophyll made up of similar sequences of amino acids.**

This statement highlights a key biochemical similarity that suggests a common evolutionary ancestor. The presence of similar chlorophyll molecules indicates that both groups share a close evolutionary relationship, supporting the idea that land plants evolved from green algae.