A massive farm near our school has recently had a decrease in crop production (e. g., not as many plants are
successfully growing). A soil ecologist was notified. She
immediately noticed that there were no worms, bacteria, or
other microorganisms in the soil, even though she knew that
many organisms were present in the soil five years ago. Based
on this information, she would probably say that the population
density of microorganisms had
a. Increased
b. Decreased
c. Immigrated
d. None of the above

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes

Toorale man murder mystery < - your lab link 1. how was the toorale man found? 2. what did archaeologists learn about the burial? why is the burial important? 3. what information were the scientists able to learn from the skeleton itself? 4. why is the question of whether the injuries came from a stone or steel weapon important? how could scientists distinguish between the different types of weapons? 5. what did the carbon dating and soil testing tell scientists about toorale man? why are the dates interesting for scientists?

Approximately what wavelength of light is best absorbed by chlorophyll a