In what major group did a life cycle with the alternation of generations first occur ?

In monocotyledonous plants, the root structure includes a central ________ and several adventitious roots.  

When designing an experiment using the guidelines of the scientific method, it’s important to include controls because:

You are in a remote tropical forest and discover a new species of red flower that smells like rotten meat. What is the most likely pollinator?

Oceanic surface currents are a result of the prevailing _____________.

Transpiration is the evaporative loss of water out of the:

Stigma, style, and ovary are referred to collectively as

What advantages does a seed coat provide to seeds?

In the dicot seeds, the endosperm is housed in the:

The complex of physical, chemical and biotic factors that act upon an organism is called the __________________ and can ultimately determine the form and survival of the organism.