Desert Biomes
Define a Desert Biome
High Temperatures, Low Precipitation
The Tundra is mostly known for its _____conditions.
Cold, Harsh
What is an ecosystem in your own words
a community of living organisms (plants, animals, microbes) interacting with each other and their non-living physical environment within a particular area
Define an invasive species in your own words
An animal/organism that is not native to the habitat and causes disruptions to the food chain.
What is a genetic mutation? Give an example
a change in the DNA sequence of an organism, which can occur during DNA replication and can result in alterations to the genetic information that may be harmful, beneficial, or have no noticeable effect on the organism
Name some plant adaptations for the Desert
Waxy Cuticles , Spikes or thorns , water storage
Climate: Warm year-round; high rainfall; high humidity
Tropical Rainforest
How can invasive species affect an ecosystem?
a) Compete with native species for resources
b) Prey on native species
c) Alter habitat structure
Organisms that occur naturally in an area or ecosystem
Native Species
Defined as
The maximum population size of a species that an environment can sustain indefinitely.
(we did a foldable)
Carrying Capacity
Name some animal adaptations for the Desert
Regulating body temp, fat storage, burrowing
Types: Lakes, rivers, wetlands
Freshwater
What 2 components make up an ecosystem
Biotic and Abiotic factors
The complete disappearance of a species from Earth.
Extinction
A sharp reduction in the size of a population that can lead to decreased genetic diversity.
(foldable)
Bottle Neck Effect
What desert do you live in?
Chihuahuan Desert
Climate: Hot summers, cold winters; moderate to low rainfall. Vegetation: Grasses
Grasslands
Name 3 Abiotic Factors
Sun, Air, Dirt , Rocks, Water ....
A linear sequence of organisms through which energy and nutrients are transferred in an ecosystem.
(We built one in a lab activity)
Food Chain
The transfer of genetic variation between populations due to movement of individuals or gametes.
Gene Flow
Where does all the water we use go?
Water treatment plant
Climate: Long, cold winters; short, cool summers; moderate precipitation
Vegetation: Coniferous trees
Taiga
Size, Feeding animals, temperature.... etc...
Otters are known to play a crucial role in aquatic ecosystems, they eat sea urchins (spiky organism that eat up kelp). What would happen if the otters population declined so much they become extinct ?
Please explain.
The sea urchins will eat an access amount of kelp(plants) and will start affecting other animals in the food chain. Sea urchins also will begin to harm other species with their spiky outsides.
Who was the English naturalist whose scientific theory of evolution by natural selection became the foundation of modern evolutionary studies.
Charles Darwin