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128 Cards in this Set

  • Front
  • Back
How do decomposers decompose?

They break down large molecules and absorb the resulting small molecules
How can fungi be useful?


Antibiotic


Food Source


Leavens bread


How can fungi be harmful?


Spoils food


Fungal disease


What is the mycelium?

The supporting structure that digests food underground
What are spores?

Specialized cells on the underside of the mushroom cap produce spores that contain haploid cells

Describe a shoot system

Photosynthetic structures exposed to light and air aboveground
Describe a root system

Belowground anchorage structures exposed to water and minerals in soil

Describe pollen

protects sperm allowing them to be carried by wind or animals

Describe egg

remains in female reproductive organ, allowing the embryo to develop within the mother's plant's body
Describe vascular system

network of tubes that transports water, sugar, and minerals

Describe cuticle

waxy coating that prevents water loss

describe leaves

main site of photosynthesis and gas exchange through pores

describe lignin

chemical in cell walls that increases support
The symbiotic association formed by fungi and plant roots

mycorrhizae
How does the fungi benefit from the plant?

Gains some sugar from the plants

How does the plant benefit from the fungi?

Gains some mineral nutrients such as phosphorus

name the tissue systems in plants


xylem


phloem


Transports water and dissolved minerals from the roots to the shoots

xylem

transports sugars from where they are made or stored to other parts of the plant

phloem

What did the evolution of a waxy outer layer reduce?

water loss

What allowed plants to grow taller?

The evolution of vascular tissue and cell walls

What freed gymnosperms from the need to reproduce near water?

Seeds

What opened up new habitats?

The evolution of seeds

What allowed angiosperms to dominate the land?

The evolution of flowers

What adaptations to bryophytes have?

A waxy outer layer that helps to retain moisture structures that provide internal protection for gametes

What is an example of a bryophyte?

moss

What is phloem?

contains living cells that trans

what is zylem?

made of dead cells acting as tiny pipes

Define transpiration

xylem sap is moved through the plant body via transpiration
What adaptations to seedless vascular plants Have?


vascular tissue


Lignin


What is lignin?

hardened cells walls

example of a seedless vascular plant

fern

what adaptations to gymnoshperms have?

seeds

example of a gymnosperm

redwood
what adaptation do angiosperms have?

flowering plants
name an example of an angiosperms

beans
How are growth rings useful?

Which years were good or bad. tells story of tree

another name for consumers

heterotrophs

another name for producers

autotrophs

describe heterotrophs

obtain food from their environment

define autotrophs

make their own food

what has asymmetrical shape?

sponges

what lacks tissues?

sponges

Sessile (staying in one place)

sponges

bilateral symmetry

cnidarians

cells organized into tissues

cnidarians

stinging cells

cnidarians

two distinct body forms

cnidarians

example of cnidarian

sea anemone
bilateral symmetry

mollusks

visceral mass

mollusks

circulatory system

mollusks

shell, mantle, and foot

mollusks

radula

mollusks
larval bilateral symmetry

echnoderms

spiny surface

echnioderms
water vascular system and tube feet

echinoderms

endoskeleton

echinoderms
mouth

echinoderms

all chordates are recognized by these features:


hollow nerve cord


tail


notochord


pharyngeal slits




vertebrates have what that includes a backbone and a skull?

endoskeleton

examples of invertebrates


cancelets (small animals)




tanicates (filter sea water)

examples of jaw-less fishes


hagfishes




lampreys


fish with jaws


cartiogknous fishes (flexible skeleton)




bonxfish (internal skeleton)

All terrestrial vertebrates are what?

tetrapods

Who were the first tetrapods?
amphibians
second tetrapods

evolution of reptiles

aquatic adaptations of amphibians


eggs w/ no shells


gills and fins


terrestrial adaptations of amphibians


adult has lungs


musculoskeletal


moist skin

two major adaptations for land for reptiles


reproduce via amniotic eggs


reptiles also have waterproff skin

define ectotherm

must obtain heat form the environment

define endotherm

metabolism maintains a warm constant body temp

groups of mammals


monotremes


marsupials


eutherian


define monotremes

only surviving egg-laying mammals
define marsupials

mature in pouches

define eutherian

born fully developed after maturing with a placenta

primate characteristics


large brains


binocular vision


limber joints, limbs, and digits


complex behaviors


extended parental care

name of the human evolutionary branch

hominin

define organismal

focuses on the ways that organisms to their environments through physiology and behavior
define population

concerned with factors that affect population size, growth, and density

define community

focus on interactions among species

define ecosystem

concerned with questions of energy flow and chemical cycling

define biosphere

study of the influence of energy and matter on organisms across the bioshpere
list six abiotic factors


energy


inorganic nutrients


wind


water availability


temp


fire

define abiotic

nonliving components
define biomass

total amount of living material in ecosystem
define primary production

measure of the rate at which solar energy is converted to biomass
list two biogeochemical biomes


carbon cycle


nitrogen cycle

describe freshwater biome

generally have salt concentrations less than 1%
describe marine biome

3% salt
intermediate aquatic

where land and freshwater meet the ocean
polar ice

northernmost and southernmost parts of Earth
tundra

dryness, bitter cold temps, high winds, permafrost
coniferous

dominated by cone-bearing evergreens
temperate broadleaf

hot summers, cold winters, relatively frequent rain
tropical forests

wet, warm climates near equator
temperate grasslands

cold winters, low rainfall, periodic drought
chaparral

coastal areas where ocean currents produce mild, rainy winter and hot, dry summers
savannas

warm, dry, grasses and scattered trees

deserts

low rain fall, cold at night, hot during day
What is the competitive exclusion principle?

if resources required by two species are too similar, cannot coexist

mutualism

form of interspecies interaction in which both species benefit
predation

an interaction in which a predator species kills and eats a prey species

herbivory

eating of plant parts by an animal

what is biological magnification?

tendency of toxins to become concentrated as they pass through a food chain

species richness

same number of species

species abundance

fraction of total life in community accounted for by each species

trophic structure


quaternary consumers


tertiary consumers


secondary consumers


primary consumers


producers



trophic structure example


Hawk


snake


mouse


grasshopper


plant


define keystone species

one species have a disproportionate effect on overall species diversity

what is the difference between primary and secondary succession?

primary occurs when an area has been rendered virtually lifeless with no soil. secondary occurs after disturbance that kills much of life in an area but leaves soil intact

define invasive species

when non-native organisms are introduced to a community, they can spread rapidly
example of invasive species

lionfish

describe integrated pest management

method that utilizes several strategies

causes of biodiversity loss


habitat destruction


invasive species


overharvesting


pollution


global climate change



three different patterns of population


clumped


uniform


random

What is carrying capacity?

maximum population size that can survive in an environment
examples of density-dependent factors affecting population growth

limiting factors whose influence is affected by population density

examples of density independent factors affecting population growth

unrelated population density

list human impacts on the environment


forest destruction


freshwater shortages


declining species


what is meant by biological hot spot?

relatively small areas with unusually high concentrations of
what is fragmentation?

splitting of habitats that causes populations to become isolate from each other
what does bioremediation aim to do?

use of living organisms to detoxify polluted ecosystems
4 greenhouse gases


carbon dioxide


methane


nitrous oxide


water vapor

describe the greenhouse effect

vital to life on earth


without it, most of earth's surface would be too cold to support life

examples of physiological respones

goose bumps, increasing red blood cells

examples of anatomical responses


plants grow towards light


seasonal heavy coats/shedding