A
A community of living and nonliving things interacting in an environment.
What type of a response are tropisms?
Daily
What is carrying capacity?
The largest number of individuals an environment can support.
What is a limiting factor?
Anything that limits the size of a population.
How much did my daugther bench press yesterday?
185
What are the two main types of ecosystems?
Terrestrial, Aquatic (freshwater, and marine).
What does “abiotic” mean?
Nonliving parts of an ecosystem.
What happens when a population goes over its carrying capacity?
There won’t be enough resources; some organisms will die or move away.
Name one biotic limiting factor.
Predators, disease, competition.
What is an organism that breaks down dead material called?
A decomposer.
What is the main source of energy for almost all ecosystems?
The Sun.
Name three abiotic factors.
Examples: sunlight, temperature, water, soil, air.
What determines an ecosystem’s carrying capacity?
The amount of food, water, space, and shelter available.
When a plant grows toward the light, what type of tropism are we seeing?
Phototropism
There used to be 2 holders for markers, erasers, etc on your tables that are no longer there. What color were they?
Amarillo or Yellow
What are some ways energy moves through an ecosystem? How is energy passed along?
Through food chains and food webs, as organisms eat and are eaten. Trophic levels.
Name three biotic factors.
Examples: plants, animals, bacteria, fungi
What is the difference between native and invasive species?
Native was there originally. Invasive came there later on and may not have a natural predator.
How do limiting factors affect population size?
They keep it from growing too large.
Put in order from smallest to largest
Species
Population
Ecosystem
Community
Species
Population
Community
Ecosystem
What is dormancy? AND... Give an example
An organism slowing its growth, metabolic rate, lowering its temperature. Bear, grass, tree
Give an example of how biotic factors depend on abiotic factors to survive.
Living things need nonliving factors (like water and sunlight) to survive.
Over time a species of hummingbird tends to move its habitat north in location. What could be a reason for this?
A)natural selection B)gene dominance
C)mass extinction D)global warming
D)global warming
What is the internal 24 hour clock our body operates on to keep everything regulated. (It would be thrown off by a big change in your time zone)
Circadian Rhythm
What 3 things do plants need to make their own food?
Sunlight, water, and carbon dioxide.