(a) Plants have leaves which contain guard cells and palisade cells. Explain how each of these kinds of cell assists photosynthesis.

Guard cells

Palisade cells

As scientists have investigated evolution from a variety of fields, they have found that some of darwin's orginal ideas were inaccurate or incomplete. t explanation provided by evolution was updated each time to reflect the new information they found. what does this suggest about the theory of evolution? it has become a stronger and clearer theory as new information is collected.

Under which of the following circumstances would natural selection not operate on an organism

The greatest increses in energy use occuree between which two stafes of society