The appendages of cockroaches and turtles are modified for creeping movements, but their internal structures are completely diff
erent from each other's. What could be the possible interpretation for this similarity? The appendages of cockroaches and turtles are homologous structures, and they have evolved from two different ancestors. The appendages of cockroaches and turtles are homologous structures, and they have evolved from a common ancestor. The appendages of cockroaches and turtles are analogous structures, and they have evolved from two different ancestors.
As light intensity increases (distance between lamp and plant decreases) the volume of oxygen (or the rate of bubble production) increases. This indicates that the rate of photosynthesis increases with light intensity. However, at sufficiently high levels of light intensity, the rate oxygen evolution remains constant.
