Life and the Natural World Lab Exam 1

What is this graph an example of?

Releve Plot

How do you properly record the data from a relive plot?

Start with the first plot and record each new species, noting characteristics and not re-recording species in others plots.

What does the species-area curve illustrate about the relationship between species and their area?

smaller areas can support fewer species

What is this graph?

Species Area Curve

What is the process of estimating total number of species in an area by extending the best fit line called?

Extrapolation

What component(s) does Biodiversity include?

Richness and Evenness

(T/F) We use a ruler to make a line of best fit

False

What device was used to magnify during week one and two?

Microscope

What is the formula for total magnification

Magnification of Ocular lens x Objective lens

what kind of solution has a high solute concentration?

Hypertonic

What kind of solution has less solute concentration than water?

Hypotonic

What kind of solution has an equal amount of water and solute concentration?

Isotonic

When we calculated change in mass in the osmosis lab, what formula did we use?

Final Mass - Initial Mass=

When we calculated % Change in week one what formula did we use?

(Change in mass/ Combined initial mass) x 100

What is this?

Soil Texture Triangle

When we calculated Available Water in our soil lab, what equation did we use?

Field Capacity-Wilting Point

When we calculated micro organisms per gram of soil in our soil lab what formula did we use?

Colony Count x Dilution Factor x 10

What are soil bacteria that form branching strands of cells and can form spores?

Actinomycetes

What are the spaces around colonies where other bacteria are not found?

Zone of Inhibition