Why is there a limit the number of levels that a food chain can reach?

If you were shipping green bananas to a supermarket thousands of miles away, which of the following chemicals would you want to eliminate from the plants' environment? a) cytokinins b) CO2 c) auxin d) ethylene.

What is the difference between science and non-science? A. Science is absolute knowledge B. Science is modified by observation C. Non science attempts to correct errors D. Non science proves natural phenomena

Describe one example given in class that illustrates the concept: "Metabolic pathways are not randomly ordered reactions, instead they obey clear chemical logic." (for full credit you must give the example AND an explanation of the chemical logic)

How long lives a man

Explain why it would be a problem if an organism's very first stem cells were copied and multiplied like usual, but they didn't differentiate.

Jessi consumes a diet of 1920 total kcalories that has 80 g of fat. what percent of jessi's diet comes from fat? (give answer to the appropriate reporting digit. only give the value. do not include the term percent or its abbreviation.)

Scientists break down evolution into catogories

The process of sediments being compacted and cemented to form sedimentary rocks is called A. metamorphism. B. deposition C. crystallization D. lithification

What is presumptive identification of a microorganism?

Which statement best describes the climate of a city? Select one: The average annual temperature of Austin, TX is 68.5°E San Antonio, Texas had a high temperature of 102°F today. Dallas, Texas had 8.6 centimeters of rain today.