Single-celled organisms that swim around, behave like animals and are usually autotrophic are put into this informal category.

Click in the center of the square that shows the plant phylum that does not have vascular tissue?

Here is a portion of the geologic time scale. Geologic time scale.jpgThe era labelled “A” is called the ________________? Spelling counts. [BLANK-1]

tree of life.jpgWhich discipline of biology studies the organization of life and put together the classification shown above?

plant types.jpgWhich of the following should take the place of the letter A in this diagram?

Part III. Bonus Question (7 points).

Click on the center of the taxonomic group (circle) with the most named species.

Geologic time scale c.jpgThe boundary between several periods is marked by a red arrow. The red arrow represents an important type of event in the history or life. True or False: These events (marked by the arrows) is often followed by a great increase in the number of species with a shift in species dominance.

The principle of superposition states that: A) The total force is equal to the product of individual forces.B) The electric field at a point is the vector sum of fields from all charges.C) Forces cancel each other in opposite directions.D) Electric fields are scalars and can be added algebraically.

b) You parents will retire in 18 years. They currently have $250,000, and they think they will need $1 million at retirement. What annual interest rate must they earn to reach their goal, assuming they don’t save any additional funds? (3’)