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Second Semester
Final!
97
Biology
9th Grade
05/23/2010

Additional Biology Flashcards

 


 

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Term
species
Definition
group of organisms so similar to one another that they can breed and produce offspring
Term
population
Definition
group of individuals that belong to the same species and live in the same area
Term
community
Definition
group of different populations that live together in a defined area
Term
producer
Definition
autotroph/ plants
Term
Biomass
Definition
the total amount of living tissue within a given trophic level
Term
primary succession
Definition
first growth that occurs on surfaces where there is no soil.
Term
secondary succession
Definition
growth after a disturbance like a flood or fire. Plants grow back because the climates are different.
Term
What happens to the remainder of heat lost?
Definition
It is eliminated by heat.
Term
How is competition reduced between organism?
Definition
preying on different food, in different niches.
Term
Abiotic factors
Definition
all NON-living parts of an ecosystem
Term
Biotic Factors
Definition
all LIVING things of an ecosystem
Term
population density
Definition
number of individuals per unit area
Term
population growth
Definition
density, geographic distribution, growth rate, age structure
Term
exponential growth
Definition
individuals in a population reproduce at a constant rate.
(the larger the population, the faster they grow)
Term
limiting factors
Definition
restrains growth of a population.
Ex.(drought, scarce food, space, predation)
Term
density dependent limiting factors
Definition
affect large dense population (competition, predation, disease)
Term
Nitrogen fixation
Definition
converts nitrogen into ammonia.
Term
Dentrification
Definition
bacteria converts nitrates into nitrogen gas
Term
Movement of energy and nutrients
Definition
energy flows in one direction and nutrients are recycled
Term
climate
Definition
the average, causes a wide range of environmental condition that shape our communities
Term
What is caused by unequal heating in the Earth's surface?
Definition
Earth is tilted on its axis, sun strikes the surface at different angles.
Term
zygote
Definition
fertilized egg
Term
root hairs
Definition
produce a large surface area and where water enters the plant
Term
megasporangium
Definition
female structure on a conifer
Term
Protonema
Definition
filament stage of a moss plant
Term
frond
Definition
a mature fern leaf
Term
germination
Definition
seed begins to grow
Term
fibrous roots
Definition
branching, covers a large surface area, holding soil
Term
arhegonium
Definition
female structure that produces a single egg
Term
antheridium
Definition
male structure that produces flagellated sperm (have tails)
Term
bryophytes
Definition
seedless non-vascular pants. (moss)
Term
sporangium
Definition
top of sporophyte, filled with spores
Term
Microspores
Definition
male pollen grain of a conifer
Term
Megaspores
Definition
female egg of a conifer
Term
Sori
Definition
brown dot found on the underside of a fern's leaf, made up of sproangia.
Term
Micropyle
Definition
opening in egg where sperm must pass through
Term
Palisade layer
Definition
under upper epidermis, densely packed cells with lots of chlorophyll
Term
thigmonastic
Definition
a plants response to touch
Term
Nastic movement is regulated by?
Definition
Water pressure
Term
Gravitropism
Definition
plants response to gravity
Term
Spongy layer
Definition
loosely packed cells with air spaces connected to the exterior surfaces
Term
complete flower
Definition
flower that has both male AND female parts
Term
mesophyll
Definition
leaf ground tissue
Term
nictinastic
Definition
a plant's rapid movement in response to stimuli.
Term
positive gravitropism
Definition
root growth
Term
Negative gravitropism
Definition
stem growth
Term
guard cells
Definition
surround stomata and control the opening and closing by responding to water pressure
Term
solar tracking
Definition
plant tracks the sun's light as it moves across the sky
Term
phototropism
Definition
plants response to light
Term
incomplete flower
Definition
flower that has only male OR female parts
Term
tropisms
Definition
a slow movement in response to stimuli
Term
gizzard
Definition
grinds food
Term
pharnyx
Definition
organ that sucks in soil
Term
bilateral symmetry
Definition
body plan has mirror images
Term
cephalization
Definition
concentration of brain-like structure in the interior area
Term
cephalization
Definition
concentration of brain-like structure in the interior area
Term
Phylum Annelida
Definition
segmented worms
Term
dorsal blood vessel
Definition
top, transports blood from the tail to the head
Term
ventral blood vessel
Definition
bottom. transports blood from head to tail
Term
segmentation
Definition
body divided into smaller sections
Term
clitelum
Definition
specialized segments that secrete a mucus ring and surround the fertilized eggs to form a cocoon for incubation.
Term
What is the name of an Annelid heart and how many do they have?
Definition
Aortic Arches, 5 hearts.
Term
Septa
Definition
thin tissues that separates each segment holding skin around earthworm's inner organs
Term
Setae
Definition
bristles found on the ventral surface used for traction movement
Term
What kind of worm is Platyhelminthes?
Definition
flat worm
Term
where do planaira live?
Definition
in the soil.
Term
eyespots
Definition
sensory structures on the anterior end of the planarian that senses light and dark
Term
mouth of a planarian is located? how does it eat?
Definition
planarian's eat through pharnyx.
Located on the tip of the pharnyx
Term
Scolex
Definition
head of tape worm with suckers to attach to the intestinal wall of its host
Term
Rostellum
Definition
contains hooks and is found on the tip of scolex
Term
Millipede
Definition
two pairs of leg per segment, round body, day-eaters, secrete toxin from skin, herbivore
Term
centipede
Definition
one pair of legs per segment, flat body, poisonous claw-like appendages, nocturnal, carnivores
Term
class Arachnid
Definition
spiders, mites, ticks, scorpions
Term
Class of Millipedes
Definition
diplopoda
Term
Class of Centipede
Definition
Chilopoda
Term
How many eyes do a spider have?
Definition
8 simple eyes
Term
Maxillipeds
Definition
manipulate food, three pairs.
Term
Cheliped
Definition
large claws- for defense.
Term
swimmerets
Definition
appendages attach to the tail used to hold eggs during reproductive seasons.
Term
where are gills attached to on the crayfish?
Definition
legs.
Term
spinnerets
Definition
webweaving organ
Term
antennules
Definition
equilibrium
Term
Malpighian tubules
Definition
excretory ORGAN, of arachnids that extracts waste from circulatory fluid
Term
coxal gland
Definition
excretory GLAND, on some arachnids found on the base of some legs. discharges wastes.
Term
spiracles
Definition
holes in abdomen attach to tracheal tubes allows oxygen to enter
Term
tracheal tubules
Definition
tubes that transport oxygen
Term
green gland
Definition
excretory organ that release excess water
Term
phylum arthropoda
Definition
segmented bodies, jointed appendages, exoskeleton
Term
society
Definition
a group of related organisms of the same species that work together for the benefit of the group
Term
metamorphosis
Definition
a process that changes the shape and forms a new body
Term
water vascular system
Definition
a network of fluid-filled canals connected to tube feet. uses are: feeding, movement, respiration and excretion
Term
statocysts cells
Definition
cells that contain calcium, regulate the crayfish equilibrium when it is upside down
Term
food chain levels, what level are consumers at?
Definition
2nd to last level
Term
symbioisis
Definition
two species live closely together
Term
ocean zone info
Definition
divided based on depth and distance from the shore: intertidal zone, coastal zone, and open ocean
Term
resource partitioning (warblers)
Definition
eat same food, different niches.
Term
central disk
Definition
the central part of the body which contains the mouth, anus, madreporite, and gonopores and from which the rays radiate.
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