Origin of Species
What Is a Species?
1. Distinguish between anagenesis and cladogenesis.
Anagensis: Phyletic evolution, accumulation of changes associated with the gradual
transformation of one species into another,
An Overview of Cell Signaling
1. Describe the basic signal-transduction pathway used for mating in yeast. Explain why we
believe these pathways evolved before the first multicellular organisms appeared on E
Plant Cell Parts
By: Kierra Maroney
Nucleus of the plant Cell
Encloses contents of nucleus
Regulate the passage of molecules
between the nucleus and cytoplasm.
Types of Skin Cancer
rough and red scaly patches on sun-exposed skin.
Basal cell Carcinoma
red or pink waxy bumps that may bleed.
Rare cancer of the cells that line blood vesse
Exploring Life on its Many Levels
1. Briefly describe the unifying themes that characterize the biological sciences.
Order: Highly ordered structure characterizes life.
Regulation: crucial for t