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A1C test
for diabetes by checking sugar on red blood cells to get an average glucose level over several months
About how many muscles I the human body?
600
Abscisic acid (ABA)
stops growth. causes dormancy. helps plants cope with environmental stresses like drought, salt.
accessory pigments
help capture other wavelengths of light
Acclimate
A physiological response that involves adjusting to a new range of environmental conditions over the course of minutes, hours, weeks, or months. We acclimate to temperature; think how much better 50°F feels in the early spring (after a cold winter) than in the early Fall (after a warm summer).
ACCLIMATE DOES NOT MEAN THE SAME THING AS ADAPT
Achilles
Tendon;
attaches calf muscle (gastrocnemius) to heel bone (calcaneus) in foot
acute stress response
adrenaline (epinephrine)
fast stress response, 'fight or flight'
Adaptive radiations rely on
BOTH character displacement and resource partitioning
Adrenal gland
stress response.
salt balance in kiidneys
Adventitious Root
a root that develops from SHOOTS instead of roots (ex. prop root of corn)
Aerobic Respiration
slowest way to make ATP, but can make it for hours
Aestivation
summer, dry season, or daily torpor. Some shrews may aestivate during the day to save energy until the next night's feeding. Frogs may aestivate during the driest parts of summer.
The African wild dog or painted dog, Lycaon pictus, is _____ closely related to true dogs (Genus Canis)
NOT
After eating a meal with sugars, blood sugar levels go up. The __ releases __ that travels to __ that store excess Glucose as __.
As blood sugar drops too low, the __ secretes __ that travels to __ that convert __ back into __ and release it into the bloodstream.
Pancreas; insulin; liver and fat cells; glycogen
pancreas; glucagon; liver and fat cells; glycogen; glucose
age structure
the number of individuals in each age class
Allee Effect
individuals in a population may have a hard time surviving or reproducing if population size is too small
individual fitness decreases as population density decreases (positive density dependence)
Allelopathy
When one organism releases chemicals that hurt or help another. Usually a plant suppressing other plants
Allen's Rule
mammals living in the cold have shorter faces and limbs than mammals living in warm areas
Allomone
a hormone that benefits the sender and harms the receiver
ex. the beaded lacewing releases a 'gas' that paralyzes termite larvae prey
anabolic effects
build muscle and body mass
androgenic effects
facial hair, deeper voice, 'maleness'
angiosperms
flowering plants
seeds protected
Annual plants
dry soil with weedy species. dandelion
Anosmia
smell blindness
anthocyanins
reflect blue, purple, dark red
Antidiuretic Hormone (ADH), or Vasopressin
produced in the hypothalamus and stored in the pituitary gland. causes kidneys to retain water in the blood. regulates salt concentration in blood by adding or subtracting water in bloodstream
Apical Dominance
most growth occurs at apical meristem. apical meristem blocks growth of lateral meristems
aposematic coloration
bright colors warn of poison
Aprical Meristems
Primary growth occurs by increasing cell number and cell seize. Found at tips of ROOTS and SHOOTS and makes primary vascular tissue, XYLEM and PHLOEM
Asprin
the most widely used drug, was first extracted from the leaves of a willow
associative learning
behavior is conditioned by the association. two types differ in how the association is established
As trees grow in width, the innermost ___ functioning in water transport and accumulates _____ (resins, gums, etc.) that make the inner most parts of the wood _____ appear darker then the younger, outermost wood we call the _____
XYLEM;
PROTECTIVE COMPOUNDS;
HEARTWOOD;
SAPWOOD
Auxin
many roles in plants, including growth of adventitious roots in tissue cultures and plant cuttings. Causes cell elongation in response to blue light. Overdose kills plants... as the defoliant in "Agent Orange"
Baculovirus
gypsy moth virus that causes them to stay at top of trees, die, and release virus particles that spread to other gypsy moth catepillars.
Basal Meristem
intercalary meristem located underground (grasses) so they can grow after being grazed
bayesian mimicry
when a harmless species mimics a harmful species. pretend to be poisonous
Behavior
what an animal does and how it does it
Behavioral conflicts of interest
if murdered, more likely by someone you know, but less likely it is a genetic relative
behavioral ecology
study of the adaptive significance of behavior
Behavioral Responses
Moving in and out of light, finding shade. Moving into the sun for warmth. Swimming to cool off. Snuggling, cuddling, huddling are all behavioral responses to cold
behavior influences survival and
reproduction (fitness) and should be shaped by natural selection
behaviors are influences by
both genetic and environmental factors (nature and nurture)
Bergmann's Rule
warm-blooded animals that live in cold areas are bigger than those that live in warm areas
biodiversity crisis
the current rapid decrease in earth's variety of life forms. greatly accelerated extinction rate
Bone spur
(osteophyte)
a small, bony projection that grows along the edge of a bone or in bone joins
Both __ and __ increase collagen content in muscle
exercise and age
breast cancer
some cancers rely on estrogen to grow
Brown Fat
Source of heat unique to neonates that is capable of greater thermogenic activity than ordinary fat; deposits are found around the adrenals, kidneys, and neck; between the scapulae; and behind the sternum for several weeks after birth
Browsing
eating only parts of the plant
Burst shivering
fast-twitch muscle fibers burning sugars
By summertime, the xylem cells are ____ and ____ producing ____ when viewed in cross section of wood. Count rings to know age of tree at the time it was cut
SMALLER, THICKER-WALLED;
DARKER;
ANNUAL GROWTH RINGS
C3 Photosynthesis
most plants use this.
they have no special mechanism for keeping oxygen away from rubisco (i.e. can't stop photorespiration and photosynthesis is less efficient)
C4 photosynthesis
minimize photorespiration by keeping oxygen away from rubisco in different cell types. Oxygen and rubisco are kept separated in space
Calcitonin and its antagonist, Parathyoid hormone
work together to regular calcium and phosphate in the blood
IODINE IS REQUIRED TO MAKE IT WHICH CAN BE FOUND IN IODIZED SALT / DIET
Cam Photosynthesis
Desert plants store CO2 at night to use during the day. Allows them to keep stoma closed during day and reduce water loss. Separate oxygen and rubisco by time (day and night)
Carotenes
reflect red and orange light
Carrying capacity (K)
the maximum population size an environment can support
CCK
produced by the small intestine when you eat and tells brain you're full, suppressing appetite
Celestial
(sun during day; stars at night)
used for general direction. orient toward sun during day, North Star at night
Cellulose
(C6 H10 O5)n.
A chain of hundreds to thousands of linked D-glucose units.
Hydrophilic, but insoluble in water
Character displacement
species evolve non-overlapping traits to avoid competition
(ex. body size)
chlorophyll absorbs
blue and red light
chlorophyll reflect
green light
chronic stress response
the hormone corisol
Cirrhosis
liver cells are destroyed as scar tissue replaces liver tissue in a process known as FIBROSIS
CITES
the convention on international trade in endangered species
classical conditioning
an involuntary response is associated positively or negatively with a stimulus that did not originally elicit the response.
ex. pavlov's dog
clumped
organisms together in herds, flocks, schools, etc.
cognitive learning
solving problems with conscious though (perception, analysis, judgement, recollection, imagination)
ex. chimpanzee stacking boxes to reach higher or crows solving problems
Collagen
protein ribbons that form connective (fibrous) tissue like tendons, ligaments, and skin
a column shape
slow population growth
Commensalism (+/0)
interaction that benefits (+) one species, has no effect (O) on the other
Community
different species in the same area at the same time
Competition (-/-)
nobody benefits
Competitive Exclusion
one species excludes another through competition. Species with the same niche cannot coexist
Condensation
water vapor becomes liquid, releases energy
Conduction
direct transfer of heat between two bodies in contact
Conservation biology
applied, integrated, and multidisciplinary SCIENTIFIC field with a primary goal of long term preservation of biodiversity. Conceived in the 1980s when it became clear the simply 'managing resources' was not sufficient to protect the environment
Convection
Heat exchange between a solid and a moving liquid or gas
Cork Cambium
cells found outside vascular cambium with wax and other waterproofing molecules.
cork cells produce a tough secondary cell wall containing lignin.
outermost layers often called "bark"
Countercurrent heat exchange
arteries and veins in the feet, flippers, appendages, etc. are alighted next to each other so that cold venous blood is warmed by arterial blood before it goes back into the body core.
ex. dolphin's flippers, duck's feet
Cryptic coloration
camouflage, for hiding
Cyclic photophosphorylation
electrons cycle between cytochrome complex and P700
1.). use only P700 and send electrons back to cytochrome complex
2.) only make ATP, not NADPH
3.) water not split, oxygen not produced
Dark Reactions (Calvin cycle)
occur in the stroma
a.) use ATP energy from light reactions
b.) use H+ and 2e- from NADPH
c.) use carbon and oxygen from CO2
d.) all to make sugar molecules C6H12O6
Deceptive patterns or behaviors
to distract or fool potential predators
Demography
The statistical study of human populations.
ex. birth and death rates
Density dependent factors
factors become more intense as population density increases. fitness decreases with increasing density. Disease / parasites/ accumulation of wastes / competition / predators
Density Independent factors
factors that affect large and small populations equally. Natural disasters, over harvesting, pollution, climate/habitat change.
Develop practical strategies to
1. stop loss of genetic variation
2. preserve species and ecosystems
Diabetes insipidus
excessive thirst and overproduction of very dilute urine. Caused by underproduction of ADH (vasopressin), by a lack of sensitivity of kidneys to ADH, or by injury to the posterior pituitary gland
Diabetes mellitus
prolonged high blood sugar (hyperglycemia)
Diabetic Hypoglycemia
dangerously LOW blood sugar levels. can be caused by too much insulin injection
Diabetic Ketoacidosis (DKA)
because insulin levels are too low, the body cannot use sugar and uses fat as fuel instead. Byproducts of fat breakdown, called ketones, build up in the body. High levels are toxic
Diabetic Neuropathy
too much blood sugar can make neurons less/more sensitive to pain
Diabetic Retinopathy
chronic high blood sugar causes small abnormal blood vessels to form in the eyes and cover the retina. may also leak blood and cause clouded vison
Diabetic Vascular Disease
too much sugar in blood vessels cause inflammation in blood vessels, leading to fat deposits, narrowed vessels, and decreased circulation to extremities
differences between dogs and wolves
1. wolves have bigger feet, heads, and teeth than dogs
2. only dogs can have curled tails, wolfs tail is carried straight
3. wolves show seasonality in breeding
4. dog tracks are staggered, wolf tracks are single-tracked
5. dogs shed fur twice per year. wolves shed once in the spring
6. only dogs can have blue eyes
Dingo
arrived in Australia somewhere between 3500-18,000 years ago.
Not domesticated, but is genetically a dog
displaced European starlings
adults can navigate and orient; juveniles can only orient. learn migration by following adults
Displacement behavior
a normal behavior (eating, grooming, etc.) occurring at an odd time
ex. cat grooming itself immediately after a failed hunt or accident
why? bc of conflict between two strong motivators or stress