Upgrade to remove ads
environmental science chapter 6: biomes
Terms in this set (44)
how many primary biomes are there?
how are these biomes characterized?
temperature and precipitaion
what is climate?
average conditions, including temperature and precipitation, over long periods of time in a given area
what is weather?
day-to-day conditions in earth's atmosphere
what is gross primary production?
the rate at which primary producers undergo photosynthesis
what is net primary production?
the amount of organic matter, or biomass, that remains after primary producers use some to carry out cellular respiration
which biomes have higher npp?
warm and wet biomes
which biomes have lower npp?
colder and drier
what are the characteristics of a tropical rain forest?
year round warm temperatures and at least 2 meters (6.6 feet) of precipitation per year; Soil is generally nutrient poor
where are the nutrients in a tropical rain forest?
in the living organisms: if something dies, decomposition starts right away
what layers of the tropical rainforest support plant life?
forest canopy, emergent layer, and understory
what are the characteristics of plants in the tropical rain forest?
plants tend to have large, flat leaves and shallow roots
why is most of the world's biodiversity found in the tropical rain forest?
because the temperature does not change
what are the characteristics of a tropical dry forest?
warm year round, but rainfall highly seasonal
what are the trees like in a tropical dry forest?
most trees are deciduous (they lose their leaves and cease photosynthesis part of the year)
how do animals and plants adapt to the tropical dry forest conditions?
plants and animals exhibit adaptations (waxy leaves, deep roots, migration) to enable them to survive dry season
what are the characteristics of a savanna?
receives less precipitation than than tropical dry forests, but more than deserts; usually has a distinct rainy season
how do grasses grow in the savanna?
grasses interspersed with groups of trees
how do trees grow in the savanna?
tree growth limited by frequent fires and strong winds
how have plants adapted to the conditions in the savanna?
plants are adapted to dry conditions; tend to be deciduous with deep roots, thick bark, and waxy coatings on leaves
what are the characteristics of a desert?
receives 25 cm of precipitation per year, temperatures vary widely from day to night
how have the plants adapted to desert conditions?
plants tend to have thick, leathery leaves, and store water in their tissues, and have shallow roots
how have animals adapted to desert conditions?
animals get most of their water from the food they eat, and they tend to be nocturnal
how have mammals adapted to desert conditions?
mammals have exaggerated appendages to help regulate body temperatures
what are the characteristics of a temperate rain forest?
year round moderate temperatures and heavy rainfall: forest floor is shaded, damp, and covered in moss
where are most temperate rain forests found?
the largest extent found in Pacific Northwest of the US
what are the trees like in a temperate rain forest?
characterized by evergreen trees, such as cedars and hemlocks, that don't loose leaves annually; many are conifers (produce seed-bearing cones)
what kind of animals thrive in temperate rain forests?
animals that require moisture, such as amphibians, thrive here
what are the characteristics of a temperate forest?
precipitation is evenly spread throughout the year: varied temperatures (hot summers, cold winters)
how have plants adapted to temperate forests?
plants tend to be broad leaved and deciduous: soil is enriched with nutrients from annual leaf drop
how have animals adapted to temperate forests?
animals may migrate, hibernate, or store food to survive cold conditions
what are characteristics of temperate grasslands (prairies)?
moderate seasonal precipitation and fairly extreme seasonal temperatures: droughts and fires common
what is the conflict with grasses and trees in temperate grasslands?
there is not enough precipitation to support large trees; grasses, which grow from their base, thrive despite droughts, fires, and animals grazing
what is the soil like in the temperate grasslands?
soil tends to be rich in nutrients; most of the world's grasslands have been converted to farmland
how have animals adapted in temperate grasslands?
animals are adapted to deal with lack of cover
what are the characteristics of a chaparral?
highly seasonal warm conditions with mild, wet winters, and warm, dry summers: prolonged hot, dry periods; droughts and fires common
how have plants adapted to the conditions of a chaparral?
plants are drought-resistant; many have thick, waxy leaves or leaves with hairs that trap moisture; succulents are common, plants may have thick bark and deep roots to resist fire; some plants require fire to germinate
how have animals adapted to the conditions of the chaparral?
many animals burrow or are nocturnal to avoid heat
what are the characteristics of a boreal forest (tagia)?
long, cold winters; short, cool summers: nutrient poor, slightly acidic soils
what are the trees like in a boreal forest?
coniferous trees with waxy needles and conical shape, adapted to harsh, snowy conditions are common
how have animals adapted to the boreal forest?
animals feed, breed, and care for young mostly during the short warm season; year round residents tend to have thick insulation and small extremities that maintain heat: low species diversity
what are the characteristics of a tundra?
extremely cold, dark winters; relatively sunny and cool summers:found at very high latitudes in the Northern Hemispheres
how have the plants adapted to the conditions of the tundra?
harsh winds, nutrient poor soil, and freezing temperatures limit plant growth; no tall trees; mosses and lichens common: smaller vegetation survives here
how is permafrost linked to the tundra?
the ground is permanently frozen: its melting due to global warming
YOU MIGHT ALSO LIKE...
Ecology by Cain Chapter 3 Biomes
Pearson Environmental Science Lesson 6.2 Biomes
Chapter 4.4 Biomes
OTHER SETS BY THIS CREATOR
cp government - congress test
boneshaker characters - scifi lit (will be updated)
levels and branches of gov't - guarni
OTHER QUIZLET SETS
.4 AP Biology Ecosystem Energy Quiz
E.S (Quiz 1.. Study Guide)
Quarter 3 Exam
Quarter 3 Exam Review