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Tundra
• Cold• Short growing season• No trees• Permafrost• Ice-wedge polygons• Animal examples: polar bear, rabbits, oxen,
deer, etc.
Tropical Rain Forest
• •Warm and wet year-round• •Home to 50% of the world’s species• •Evergreen• •Do have seasonality
Chaparral-Mediterranean vegetation--warm, dry summers-Cool, wet winters-Often on hills near cool oceans-Shrubby vegetation, evergreen or deciduous-Infrequent, devastating fires-Many unique species
• Are biomes characterized by the plant or animal life that inhabits them? Explain why you chose the answer that you did.
Savanna
• Defined by grass layer• Variable tree and shrub cover• Abundance of large grazing mammals• Strongly Seasonal• Fire• Migrating animals
• Which of the following is not an abiotic factor that shapes ecosystems?
• A. soil minerals • B. predators • C. fire• D. rainfall • E. volcanic eruptions
• •Still waters (ponds & lakes)• •Moving waters (rivers & streams)• •Wetlands fresh, salt, or brackish marshes
/swamps (trees)
• Surface Euphotic Zone- Plants (shallow waters)- Plankton (open waters)•Deeper Aphotic Zone-Little light = cooler-Detritus-based•Benthos-(the sediments)
Population densities of plankton are likely to be greatest in which part of a lake?
A. photic zone B. euphotic zone C. thermocline D. benthos E. littoral zone
Population densities of plankton are likely to be greatest in which part of a lake?
A. photic zone B. euphotic zone C. thermocline D. benthos E. littoral zone
• Which of the following organisms does not reproduce cells by mitosis and cytokinesis?
A. banana tree B. bacterium C. cockroach D. cow E. mushroom
In what ways are all protists alike? They are allA.nonparasitic B. eukaryotic C. multicellular D. marine E. photosynthetic
• Which of the following is the unit of evolution? In other words, which of the following can evolve in the Darwinian sense?
A.gene B. chromosome C. individual D. population E. species
Bacteria which live on your skin without causing disease are described as having what kind of symbiotic relationship with you?a. commensalismb. mutualismc. parasitismd. pathogenesise. heterotrophism
• Which of the following is a general trend in the evolution of the plant kingdom?
a. small plants to large plantsb. increasing dominance of the gametophyte
stagec. diminution of the gametophyte staged. increasing efficiency of photosynthesise. increasingly complex seeds
• Angiosperms are the most successful terrestrial plants. This success is associated with all of the following except
A.xylem with vessels. B. sperm cells with flagella C. animal pollination D. reduced gametophytes E. fruits enclosing seeds.
Fungi….
• How are the hyphae and mycelium related to one another?
• What purpose does chitin have?• How is nutrition acquired?• What is the difference between saprobes and
parasites?• What is mycorrhizae?• Do they produce asexually or sexually?
• Fusion of haploid hyphae• ---Dikaryotic stage, sometimes• ---diploid stage• 1n spores produced by meiosis