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Lec. Exam 2
Ch. 5 - Ch. 7
242
Biology
Undergraduate 4
03/06/2014

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Term
Name 4 ways plants are different/special
Definition
1. high phenotypic plasticity
2. indeterminant growth
3. clonal growth
4. modular body
Term
________ is when form and physiology adjust to the environment
Definition
phenotypic plasticity
Term
Give an example of phenotypic plasticity
Definition
Pygmy forest - each terrace is 100,000 older; plants at hardpan are stunted
Term
________ means a plant keeps growing throughout its entire life
Definition
indeterminant growth
Term
Because plants are able to grow leaves, stems, and roots throughout life, they are said to have a ________ body.
Definition
modular
Term
_________ growth = asexual reproduction
Definition
Clonal
Term
A ________ is a GENETIC individual that exists as an entire GROUP of plants, made up of physiologically independent clones.
Definition
genet
Term
A _______ is a clone, or member of a genet. It is physiologically independent.
Definition
ramet
Term
Give 2 examples of a genet/ramet
Definition
1. quaking aspen (Populus tremuloides)
2. creosote bush(Larrea tridentata)
Term
_______ is the "name" given to the genet of quaking aspen in the Wasatch Mountains in Utah
Definition
Pando
Term
_____ is the "name" given to the genet of the creosote bush.
Definition
King Crown
Term
______ is the clonal growth form in which ramets are tightly branched.
Definition
Phalanx
Term
The phalanx growth form is a foraging/competition strategy?
Definition
competition
Term
______ is the clonal growth form in which ramets are wide-ranging.
Definition
Guerilla
Term
The guerilla growth form is a foraging/competition strategy?
Definition
foraging
Term
Give an example of phalanx/guerilla growth?
Definition
Ipomoea stolonifera
Term
_________ is the arrested growth and development of a seed/plant.
Definition
Seed dormancy
Term
________ is a group of dormant seeds.
Definition
Seed bank
Term
Name 2 places where seed banks can be located.
Definition
1. in soil
2. on branches
Term
Definition
serotinous cones
Term
Definition
Banksia sp.
Term
There are _________+ seeds in a seed bank in agricultural soil.
Definition
20,000
Term
In tropical forests, there are <_______ seeds per sq. meter.
Definition
1,000
Term
Name 4 dormancy mechanisms.
Definition
1. incomplete embryo development
2. biochemical trigger
3. impermeable seed coat
4. germination inhibitors
Term
A ________ is a dormancy mechanism that has environmental cue/condition that causes a reaction inside the seed to start the process of germination.
Definition
biochemical trigger
Term
______ is a moist cold treatment
Definition
Stratification
Term
_____ is a hot treatment
Definition
Sumorization
Term
______ breaks the barrier of the seed coat (e.g. fire)
Definition
Scarification
Term
Give 2 examples of scarification
Definition
1. chaparral (shrub)
2. Fremontodendron decumbens (endangered Pine Hill flannel bush)
Term
Seeds are germinated best for ____ minutes at ____ degrees C.
Definition
5, 100
Term
Give an example of mechanical scarification of seeds.
Definition
smoke tree in arroyoi dry gulley carved by floods
Term
Name 3 reasons why seed banks are important.
Definition
1. seed bank COMPOSITION different from vegetation competition
2. most of a population exists within a seed bank
3. a seed bank is a genetic reservoir
Term
Give an example of a place where the # of tree species in actual vegetation greatly differs from the # of species within the seed bank.
Definition
African rain forest
Term
Name the place where there are only 100 grasses per sq. meter but 30,000 seeds per sq. meter.
Definition
California annual grassland
Term
Name 4 types of population models.
Definition
1. simple discrete-time model
2. continous time model
Term
Give an example of a plant that uses a simple-discrete time model.
Definition
Cakile (sea rocket)
Term
Give the formula for a simple-discrete time model.
Definition
N(t+1) = N(t) + B + I - D - E
Term
Give an example of a sink/source population.
Definition
Cakile (sea rocket)
Term
Immigration and emigration are important for analyzing ___________, which is the mosaic of populations.
Definition
metapopulation dynamics
Term
A _________ time model gives a J-shaped curve.
Definition
continuous
Term
A J-shaped curve in a continuous time model shows ______ growth.
Definition
exponential
Term
An S-shaped curve in a continuous time model shows ______ growth.
Definition
logistic
Term
_______ is the maximum number of individuals a habitat can support, represented by K in a continuous time model.
Definition
Carrying capacity
Term
Give the formula for the continuous time model and what everything stands for.
Definition
rate of population change = dN/dt = Nrmax(K-N) / K

Nrmax = b - d = intrinsic rate of natural increase
Term
Carrying capacity (K) is based on ______
Definition
density
Term
Because plants are modular/plastic, carrying capacity K is often replaced by ________, in which we combine density with biomass/individual to create a more realistic value.
Definition
crowding capacity
Term
_________ means that the yield is the same for a wide-ranging density. There may be more #s of plants, but the biomass is the same no matter how many seeds you plant.
Definition
Law of Constant Yield
Term
A _______ is a complex discrete-time period model.
Definition
life table
Term
Name the 2 types of life tables.
Definition
1. cohort life table
2. static life table
Term
A _______ life table follows 1 generation through time.
Definition
cohort
Term
A _______ life table assumes that the current age structure is constant through time.
Definition
static
Term
Give an example of a plant that uses the static life table.
Definition
Pinus longaeva (Bristlecone pine)
Term
A ______ is used to extract core wood from a tree.
Definition
increment borer
Term
_______ is the proportion of the original cohort surviving to the beginning of each age interval.
Definition
Survivorship
Term
Lx represents _______.
Definition
survivorship
Term
_________ curves show mortality pattern with age.
Definition
Survivorship
Term
The Type (1,2,3?) survivorship curve represents annual plants, small plants, and big animals.
Definition
1
Term
The Type (1,2,3?) survivorship curve represents seeds in soil.
Definition
2
Term
The Type (1,2,3?) survivorship curve represents perennial plants (trees), big plants, small animals.
Definition
3
Term
Type ___ plants have a low chance of survival when young, but once established, will live a very long time.
Definition
3
Term
Oftentimes, a stable population will have a ___-shaped curve.
Definition
L
Term
Give an example of a stable population with an L-shaped curve.
Definition
Pinus rubens (red spruce)
Term
_______ is the term for sporadic seedling success.
Definition
Episodic establishment
Term
Give an example of a plant that practices episodic establishment.
Definition
Pinus banksiana (Jack pine)
Term
_______ are closed-cone pine cones that release seeds after a fire.
Definition
Serotinous
Term
Episodic establishment depends on ________.
Definition
disturbance
Term
Give the formula for net reproductive rate.
Definition
R0 = Sigma (lx)(bx)

lx = survivorship (# individuals that survived to that age)
bx = fecundity (# offspring/individual)
Term
If R0 > 1, the population is ________
If R0 = 1, the population is ________
If R0 < 1, the population is ________
Definition
increasing
stable
decreasing
Term
A transition matrix model multiplies _______ by _________.
Definition
population vector, transition matrix
Term
Give 4 examples of plants that uses a transition matrix model.
Definition
Plantago
Trillium
Dipsacus sylvaticus (teasel)
Torreya taxifolia (Florida torreya)
Term
?
Definition
population vector
Term
A ________ represents the probability to transition between one census and the next.
Definition
transition matrix
Term
________ is an analysis in which models predict the probability of extinction.
Definition
Population viability analysis (PVA)
Term
_______ was a German agriculturalist who discovered mineral fertilizer and the Law of the Minimum.
Definition
Liebig
Term
________ states that growth/distribution depends on the most limiting environmental factor.
Definition
Law of the Minimum
Term
What was the limiting factor in Australian legumes studied by Liebig?
Definition
Mo
Term
_______ was an American who proposed the Theory of Tolerance.
Definition
Shelford
Term
_______ states that abiotic factors define potential range for plants.
Definition
Theory of Tolerance
Term
The __________ is the point on a graph where the plant can grow the best.
Definition
Physiological/Potential Optimum
Term
Name the plant that cattle avoid because it causes their skin to sunburn.
Definition
Hypericum perforatum (Klamath weed)
Term
What animal is used to control the Klamath weed?
Definition
Chrysolina beetle
Term
_______ is the appearance of a plant that is determined by genotype and environment.
Definition
Phenotype
Term
______ is the genetic make-up of a plant.
Definition
Genotype
Term
______ is a genetically determined trait with survival/reproductive benefit.
Definition
Adaption
Term
______ is the resemblance between relatives due to shared genes.
Definition
Heritability
Term
Give the formula for heritability.
Definition
h^2 = Vg/Vp

Vg = variation due to genotype
Vp = total phenotypic variation
Term
Give 2 reasons why variation due to genotype is beneficial.
Definition
1. allows for evolutionary flexibility (ability to adapt)
2. dominant alleles mask lethal recessive alleles
Term
_______ is the random loss of genetic variation by chance alone.
Definition
Genetic drift
Term
Name a species that is vulnerable to genetic drift.
Definition
Wollemi pine in Australia (only 40 plants exist!) --> currently no measurable genetic diversity
Term
Name 2 sources of new genetic variation.
Definition
1. mutation
2. immigration
Term
_____ is a heritable change in DNA experienced by about 10% of each generation of a population.
Definition
Mutation
Term
_______ occurs when the same twig/leaf forms in a juvenile and an adult.
Definition
Homoblasty
Term
Give an example of a plant that shows homoblasty.
Definition
Fagus grandifolia
Term
_______ occurs when a different twig/leaf forms in a juvenile and an adult. (2 names)
Definition
Heteroblasty or juvenile foliage
Term
Give an example of a plant that shows heteroblasty.
Definition
Juniperus
Term
______ refers to a branching type with wide-angled branches and small leaves.
Definition
Divaricate
Term
Give 2 examples of a species that has a divaricate juvenile (heteroblasty).
Definition
Pennantia corymbosa
Plagianthus regius
Term
Explain how divaricate branches came to exist.
Definition
Divaricate branches resist tearing and are difficult to swallow, which protected them from being predated by moas (now extinct birds)
Term
_______ is a type of phenotypic plasticity in which leaf forms vary dramatically depending on the leaf's environment.
Definition
Heterophylly
Term
Many plants growing in water (half in/half out) show __________.
Definition
heterophylly
Term
A ______ is a group of individuals who are related closely enough to interbreed.
Definition
population
Term
A _______ includes population that are morphologically similar and POTENTIALLY interbreeding.
Definition
species
Term
_______ is a method to determine whether traits are genetic or environmentally determined.
Definition
Common Garden Experiment
Term
______ performed a common garden experiment on hawkweed (Hieracium)in Sweden.
Definition
Turesson
Term
A _______ is a subspecies within a species that is adapted to a specific environment.
Definition
ecotype
Term
Name 2 plant species that represents an ecotype.
Definition
Potentilla glandulosa
Geranium sanguineum
Agrostis tenuis (bentgrass) - metal soil
Term
A ______ is a group of species that are phenotypically different when apart, but become more similar when placed into a common garden.
Definition
ecophene
Term
Give an example of an ecophene.
Definition
Pygmy forest
Term
A ________ is a continuous variation in traits along an environmental gradient.
Definition
ecocline
Term
_______ is an ecotypic trait that describes the timing of life cycle events (flowering, germination) and behavior.
Definition
Phenology
Term
Name 3 types of ecotypic traits (traits that can change when placed into a common garden).
Definition
1. Morphology
2. Phenology
3. Physiology (photosynthesis rate)
Term
Give an example of an ecophysiological ecotype.
Definition
Oxyria digyna (alpine sorrel) - gets sunburned in alpine but not arctic tundra
Term
Give an example of a plant that does not have ecotypes (i.e. it's tolerant of all environmental conditions).
Definition
Pinus sabiniana (foothill pine)
Term
_______ is the plastic, temporary change caused by PAST environment.
Definition
Acclimation
Term
Give an example of a plant that shows acclimation (affected by PAST environment).
Definition
Senecio vulgaris (groundsel) - temp. at which seed germinated later affected growth of plants even when they were all in the same environment
Term
_______ refers to how a plant builds its body and behaves (phenology).
Definition
Growth form
Term
Name 8 factors of Raunkiaer's growth form system.
Definition
1. size
2. lifespan
3. woodiness
4. nutrition mode
5. features (spines, etc.)
6. leaf traits (shape, etc.)
7. phenology
8. location of overwintering buds
Term
______ is a Raunkiaer category in which buds are >50 cm above the ground.

e.g. trees and tall shrubs
Definition
Phanerophyte
Term
______ is a Raunkiaer category in which buds are <50 cm above the ground.

e.g. dwarf shrub
Definition
Chamaephyte
Term
Give an example of a chamaephyte.
Definition
Vaccinium pallidum
Term
______ is a Raunkiaer category in which buds are at the surface of the plant but die back to ground level every fall.
Definition
Hemicryptophyte
Term
Give an example of a hemicryptophyte.
Definition
Andropogon
Term
______ is a Raunkiaer category in which buds are below the ground.
Definition
Cryptophyte/geophyte
Term
Give an example of a cryptophyte.
Definition
bulb plants like Trillium
Term
______ is a Raunkiaer category in which tha plant seed overwinters.
Definition
Therophyte
Term
Give an example of a therophyte.
Definition
desert candles (cactus?)
Term
______ is a Raunkiaer category in which the plant is a woody vine.
Definition
Liana
Term
Give an example of a liana growth form.
Definition
Berchemia scandens
Term
______ is a Raunkiaer category in which the plant germinates and grows on other plants.
Definition
Epiphyte
Term
Give an example of an epiphyte.
Definition
Tillandsia usneoides
Term
Give an example of a commensalist.
Definition
Tillandsia usneoides
Term
Give an example of a mutualism.
Definition
Advanticious canopy roots in tropical forests.
Term
______ are parasites that lack chlorophyll.
Definition
Holoparasites
Term
Give an example of a holoparasite.
Definition
Cucuta (witch's hair or love vine or dodder)
Term
______ are modified roots that tap into the host, used by holoparasites.
Definition
Havstoria
Term
Give an example of a hemiparasite.
Definition
Phorodendron leucarpum
Term
________ produces genetically identical offspring via mitosis.
Definition
Asexual reproduction
Term
________ is when asexual seeds produce seed clones.
Definition
Agamospermy
Term
Give an example of 2 plants that practice agamospermy.
Definition
1. Taraxacum (dandelion)
2. Rubus
Term
______ produces genetically varying offspring via meiosis and fertilization.
Definition
Sexual reproduction
Term
______ is reduction division (2N to 1N).
Definition
Meiosis
Term
_______ is when gametes form a zygote (1N to 2N).
Definition
Fertilization
Term
______ describes a plant life cycle in which there are two bodies and one cycle (alternation of generations).
Definition
Sporic meiosis
Term
In mosses, the major body is a sporophyte or gametophyte?
Definition
Gametophyte
Term
In seed plants and ferns, the major body is a sporphyte or gametophyte?
Definition
Sporophyte
Term
In seed plants, the male gametophyte is the ________.
Definition
Pollen grain
Term
What is a seed?
Definition
1. baby plant (new sporophyte)
2. in box (seed coat)
3. with lunch (endosperm)
Term
Give an example of a plant that fuses its petals to create tubular structures involved in pollination.
Definition
Aesculus pavia
Term
A plant with both stamens and pistils is said to be ______.
Definition
perfect/monoecious
Term
When a plant has all 4 parts (sepal, petal, stamen, pistil), it is said to be ______.
Definition
complete
Term
When pistils and stamins are on separate plants, the plant is said to be _______.
Definition
dioecious/imperfect
Term
Give 2 examples of dioecious plants.
Definition
1. Juniperus virginiana
2. Diospyros virginiana (persimmon)
Term
When a plant does not have all 4 parts (sepal, petal, stamen, pistil), it is said to be _______.
Definition
incomplete
Term
A group of flowers is referred to as a _______.
Definition
infloresence
Term
_______ flowers are a type of inflorescence in which the petals fuse on the outside.
Definition
Ray
Term
_______ flowers are a type of inflorescence in which the petals fuse on the inner part.
Definition
Disk
Term
Give 2 examples of inflorescences.
Definition
1. Asteraceae (sunflower)
2. Cornus florida (dogwood)
Term
______ are the white structures in Cornus florida that look like they are the petals but they are not.
Definition
Bracts
Term
Pollination is the transfer of pollen from a _______ to a _______.
Definition
anther, stigma
Term
A ______ is a landing platform for pollen.
Definition
pistil
Term
_____ is the fusion of sperm and egg in the ovule to form a zygote.
Definition
Fertilization
Term
______ pollination occurs when pollen is carried by wind or water.
Definition
Abiotic
Term
Name a plant that is wind pollinated.
Definition
Carya
Term
Pollen is high in what 4 substances?
Definition
1. protein
2. lipids
3. minerals
4. starch
Term
________ is the term for multiple stamens.
Definition
Sequential anther dehiscence
Term
Give an example of sequential anther dehiscence.
Definition
Creosote bush
Term
_________ are anthers that have holes in them (aka saltshaker anthers)
Definition
Poricidal anthers
Term
Give an example of poricidal anthers.
Definition
Vaccinium
Term
______ is the sugary fluid produced by nectar glands (nectaries).
Definition
Nectar
Term
Give an example of a plant that produces nectar.
Definition
Lonicera japonicum
Term
Give 3 purposes for plant oil/resin.
Definition
1. nest construction
2. food for larvae
3. cologne for male bees
Term
Give an example of a species that has oil/resin.
Definition
Krameria
Term
_______ is when the transfer of pollen to the stigma of another flower is aided by learning.
Definition
Directed dispersal
Term
Directed dispersal fosters _______, meaning bees visit just that one species on a foraging trip.
Definition
floral constancy
Term
The style can be referred to as a ________ because only the first two pollen grains to arrive get to fertilize (when there are many at a time).
Definition
selective racetrack
Term
Give an example of a plant that has a "selective racetrack".
Definition
Coyote melon
Term
_______ is the act of mating with others to generate genetic variation.
Definition
Outcrossing
Term
______ refers to the trait in which flowers differ in stame/style length.
Definition
Heterostyly
Term
______ refers to the trait in which there are two different "morphs" of a perfect flower, each type of morph on a different plant.
Definition
Distyly
Term
Give 4 ways to favor outcrossing.
Definition
1. dioecy
2. floral morphology
3. floral phenology
4. self-incompatibility
Term
Give an example of a plant that shows distyly.
Definition
Gelsemium sempervirens
Term
_____ is a type of floral phenology in which the anthers dehisce first and then stigmas close, then the anthers close and stigmas open.
Definition
Protandry
Term
_______ is a type of floral phenology in which the stigma is receptive first and then the anthers.
Definition
Protogyny
Term
______ refers to the plant behavior in which it stops germinating/growing as a means to favor outcrossing.
Definition
Self-incompatibility
Term
______ are pollinators with good sight and smell.
Definition
Bees
Term
A ________ is the place on a flower for a bee to land.
Definition
landing platform
Term
________ are patterns that direct a bee to nectar.
Definition
Nectar guides
Term
______ are pollinators that have poor vision but good smell. Attracted to large, light colored flowers that are fruity or spicy.
Definition
Beetles
Term
Give an example of a flower that beetles pollinate.
Definition
Cornus florida
Term
______ are pollinators that have poor smell but good vision. Attracted to red/orange flowers of little fragrance.
Definition
Birds
Term
Give an example of a plant pollinated by a bird.
Definition
Aesculus pavia
Term
_______ is the term that describes how flower traits and pollinator traits adapt to each other.
Definition
Pollination Syndrome
Term
______ are pollinators that are active during the day, have good sight, but cannot hover. Attracted to yellow, blue, and pink flowers.
Definition
Butterflies
Term
______ are pollinators that have poor sight but good smell, and are attracted to fruity smelling flowers at night.
Definition
Bats
Term
Give an example of a plant pollinated by butterflies.
Definition
Phlox pilosa
Term
Give 2 examples of plants pollinated by bats.
Definition
Parkia
Saguaro
Term
______ are pollinators with poor vision but good smell. Attracted to sweet-smelling, light-colored flowers that open at night.
Definition
Moths
Term
Give an example of a plant pollinated by moths.
Definition
Night blooming jasmine
Term
A _______ is a long pouch with nectar at the bottom.
Definition
nectar spur
Term
Give an example of a plant that has a long nectar spur that represents runaway selection.
Definition
Angraecum orchid
Term
______ are pollinators that are attracted to a rotting fruit smell/appearence.
Definition
Flies
Term
Give 2 examples of a plant that paratizes a fly.
Definition
Stapelia
Asimina triloba
Rafflesia
Titan arum
Term
_______ are flowers that look/smell like a female bee.
Definition
Sexual mimics
Term
Name a plant that parasitizes a bee by making it fall on its back to catch pollen.
Definition
Calopogon orchid
Term
_________ occurs when a visitor removes the rewards of a flower but does not pollinate it.
Definition
Floral larceny
Term
Give an example of a plant that experiences floral larceny.
Definition
snapdragon
Term
How does the Yucca filamentosa plant punish a cheating Yucca moth that lays too many eggs?
Definition
Plant aborts fruits (ovaries) that have a low # of seeds.
Term
________ describes the effects transmitted through the food web.
Definition
Trophic cascades
Term
A _______ is a location suitable for germination and seedling establishment.
Definition
safe site
Term
Give 5 reasons why seeds want to disperse.
Definition
1. escape competition (from parent/sibling)
2. escape predation
3. find new habitats
4. gene flow
5. maintain sink population
Term
The _______ is the pattern of seed dispersal with distance from parents.
Definition
seed shadow
Term
A _______ is an area with conditions suitable for a specific plant to live in.
Definition
climate envelope
Term
The ______ is the outer protective layer of the pericarp.
Definition
exocarp
Term
The ______ is the edible part of the pericarp.
Definition
mesocarp
Term
The _____ is the inner part of the pericarp that protects the seed from being eaten.
Definition
endocarp
Term
A _______ is a seed that is fused to the pericarp at one point.
Definition
achene
Term
Give 2 examples of plants that have achenes.
Definition
1. dandelion
2. sunflower
Term
A ______ is a seed that is fused entirely to the pericarp.
Definition
grain/caryopsis
Term
Give 3 examples of plants that have grains.
Definition
1. corn
2. rice
3. wheat
Term
Because sometimes it is the fruit that is dispersed and sometimes it is the seed that is dispersed, we refer to the single dispersal unit as the _______.
Definition
diaspore
Term
Give 3 functions of a fruit/seed coat.
Definition
1. protection
2. seed dormancy
3. seed dispersal (some have wings, barbs, or yumminess)
Term
__________ is a type of abiotic dispersal in which the fruit throws/squirts seeds.
Definition
Ballistic dispersal
Term
Give 2 examples of plants that have ballistic dispersal.
Definition
1. touch me not
2. Cardamine hirsuta
Term
Give an example of a plant that has wind dispersal.
Definition
Taraxacum (dandelion)
Term
Give an example of a plant that has water dispersal.
Definition
coconut
Term
_________ refers to a diaspore being carried on the OUTSIDE of a body.
Definition
Epizoochory
Term
Give 2 examples of plants that show epizoochory.
Definition
1. Soliva sessila (lawn burweed)
2. Proboscidea (Devil's claw)
Term
The Clark's nutcracker is an example of a ________, because it disperses tons of seeds in different places.
Definition
scatter hoarding animal
Term
Give an example of a plant whose seeds are dispersed via scatter hoarding epizoochory.
Definition
Pinus albicaulus (white bark pine)
Term
_______ refers to a diaspore being eaten in order to be dispersed.
Definition
Endozoochory
Term
Give an example of an animal and the plant whose seeds it disperses via endozoochory.
Definition
Dodo bird, Calvaria tree
Term
________ is seed dispersal by ants.
Definition
Myrmecochory
Term
Name 7 plants that use myrmecochory.
Definition
1. Stylophorum
2. Fremontodendron
3. Trillium
4. Hexastylus arifolia
5. Bloodroot
6. Erythronium
7. Viola
Term
________ is the food body outside the seed coat or the fruit that acts as a reward for the animal dispersing.
Definition
Elaiosome
Term
The animal for pollen dispersal is _______.
Definition
insect
Term
The animal for seed dispersal is ______.
Definition
Mammals and birds
Term
The target for pollen dispersal is ______.
Definition
stigma
Term
The target for seed dispersal is ______.
Definition
safe site
Term
The motivation to target for pollen dispersal is ______.
Definition
floral reward
Term
The motivation to target for seed dispersal is ______.
Definition
none
Term
The cues to target for pollen dispersal is ______.
Definition
floral traits
Term
The cues to target for seed dispersal is ______.
Definition
none
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