Life
The study of living things
Biology
What is the first (most broad) category of classification?
Kingdom
What is an ecosystem?
The living things and physical environment in a specified region
What is the source of energy in a food chain
The producer (autotroph) which gets it from the sun
What is the difference between organic and inorganic molecules?
Organic - contain carbon
Inorganic - do not contain carbon (except CO2 and carbonates)
What is the cell theory
What is the most specific level of classification?
Species (or subspecies)
What is intercropping?
Growing crops together to mutually benefit from each other
List the levels of the food chain
Producer, primary consumer, secondary consumer, tertiary consumer, quaternary consumer.
Explain the water cycle using the four stages
Evaporation, Condensation, precipitation, collection
Who performed experiments to disprove the theory of spontaneous generation?
Francesco Redi
Who came up with the system of classificiation that we use today?
T/F Organisms can create and destroy energy
False
What is an herbivore?
A consumer that eats only plants
How does carbon get from the atmosphere into the food chain?
Autotrophs use it in photosynthesis to make glucose which is eaten and passed up the food chain.
Explain the difference between sexual and asexual reproduction
Sexual: uses genetic material from two parents producing offspring that vary
Asexual: uses genetic material from only one parent, produces identical offspring
How would you abbreviate Urocyon cinereargenteus californicus?
U. cinereargenteus californicus
Energy is like ____
Money
What are the other two classifications of consumers?
Carnivore and Omnivore
Explain the difference between nitrogen fixing bacteria and nitrifying bacteria.
Nitrifying bacteria take ammonium and convert it into nitrates (most usable form)
Name the seven characteristics of living things
1. Come from preexisting life
2. Made of cells
3. Need energy to live
4. Sense and respond to changes around them
5. Grow, mature, and die
6. Contain DNA
7. Reproduce after their kind
Name the classification levels in order
Kingdom, Phylum, Class, Order, Family, Genus, Species
What is a limiting factor?
Something that is necessary for growth or a chemical reaction but is in shorter supply than the other components.
What is an energy pyramid?
A graph that illustrates the loss of energy at each higher feeding level in an ecosystem.
Why are legumes an important plant?
They contain nodules with nitrogen fixing bacteria in them, so when they die they give more nitrogen back to the soil than other plants.