UNIT 1
Which trophic level has the most energy?
Producers
An ecosystem is destroyed and left with only barren rock, what kind of succession would occur here?
Primary Succession
Which of R and K strategists have many children and don’t provide much care to them individually
R strategists
What are the five primary soil formation factors?
Climate, parent material, topography, organisms, and time.
What is the largest ocean in the world?
Pacific Oceans
What is called when only 10% of energy is passed on from one trophic level?
The 10% rule
An animal that is generally small, produces large amounts of offspring, and are better able to adapt to new environments?
R- selected specialist
What stage has a declining birth rate and low death rate?
Stage 3
What gas is most prevalent in the Earth’s atmosphere?
Nitrogen - 78%
What is the deepest point in our oceans called?
Mariana Trench
Two different species use the same resource in different areas of a shared habitat. What kind of partitioning is this?
Spatial Partitioning
What is a bottleneck event?
A natural disaster or event of human intervention that lowers the population and genetic diversity of an already small population.
Describe a large difference between generalists and specialist species.
Generalists use a large range of resources, while specialists have a limited range of resources they use to survive.
What is the correct order of soil horizons starting at the surface?
O, A, E, B, C
How many hearts does one octopus have?
3
Which biome would have the least amount of soil nutrients?
Tundra, Rainforest, Savannah
Tundra
Define Fitness
An organism’s ability to survive and reproduce.
Define biotic potential.
How much a species can reproduce in ideal conditions.
Define albedo.
How reflective a surface is (how attracted to a surface the sun’s rays are).
What percentage of our oceans have actually been explored?
5%
What element is exchanged between the ocean and the atmosphere, causing ocean acidification?
CO2
Determine whether these natural disasters/disturbances are periodic, episodic, or random: dry/wet seasons, hurricanes, and earthquakes.
dry/wet seasons- periodic, hurricanes- episodic, earthquakes- random.
What is the equation for the growth rate of a population?
(Crude Birth Rate - Crude Death Rate)/10
What three components make up soild?
Sand, silt and clay.
What was the biggest mountain on Earth before Mt. Everest was discovered?
Mt. Everest (still there, just wasn’t discovered yet)