The conifer pollen cone produces ____________ within pollen. Pollen is the haploid ____________.

What is the function of the pallial muscle? 

What is the name of structure E?

Which of the following best explains how the cohesion-tension theory relates to the observed transpiration rates in your potometer experiment?  

Why might tapeworms and fluke have a complex reproductive life cycles, but other body systems are reduced or absent? 

Match the labeled structures to the correct anatomical name. 

Why might tapeworms and fluke have a complex reproductive life cycles, but other body systems are reduced or absent? 

What is the name of structure E?

Which of the following best explains how the cohesion-tension theory relates to the observed transpiration rates in your potometer experiment?  

In free living flatworms, what adaptations help nutrients and gases reach all cell in the body