genetic instructions for a specific trait
individuals at one end of the curve have higher fitness than individuals in the middle or at the other end
individuals near the center of the curve have a higher fitness than individuals at either end
individuals at the upper and lower ends of the curve have higher fitness than individuals near the middle
random change in the genetic information
study of living organisms and their interactions in their physical environment
all living things in a physical environment
the process of water in liquid form changing into gas form
water vapor forming from cold, The change of state from a gas to a liquid
rain, hail, snow, sleet
when water is transfered into the atmosphere by evaporating off plants/soil
organisms that rely on others for energy/food
organisms that take energy sunlight to create food
organisms that consume remains and dead matter
heterotrophs that break down organic matter
process of burning
natural fuel (coal/gas) formed in the past from remains of living organisms
a region characterized by certain sunlight and rainfall conditions
the movement of individuals into an area
the movement of individuals out of an area
the largest number of organisms that an environment can support
the conversion of nitrogen gas into ammonia
when other soil bacteria convert nitrates and nitrites back into nitrogen gas (N2)
basic unit of matter
the length of time required for half of the radioactive atoms in a sample to decay
the evolutionary process by which new species arise
a group of organisms so alike that they can mate and produce fertile offspring
unstable form of an element - irregular number of subatomic particles
big evolutionary changes that take place of long periods of time
evolutionary change within a species or small groups of organisms usually over short periods of time
the process by which modern organisms have descended from ancient organisms
a well-supported testable explanation
preserved remains of ancient organisms
the ability of an individual to survive and reproduce in a given environment
an inherited trait that increase the chance of survival
a group of organisms of one species that interbreed and live in the same place at the same time
one organism lives in or on another and harms the host
an association between two organisms in which one benefits and the other derives neither benefit nor harm
an area composed of a group of organisms or populations of different species occupying a particular space
when individuals of different species compete over a variety of limiting factors
a relationship between organisms in which at least one organism benefits
two species competing for the same resources can not stably coexist in the same niche
a diversity of species
creatures that are small, demand very few resources, have no parental care, and have lots of offspring (high death rate).
when individuals in a population reproduce at a constant rate (J-shaped curve). When the population grows exponentially under ideal conditions and unlimited resources
maintaining balance by avoiding depletion of natural resources
plans for carrying capacity, fewer babies but greater care, low death rate.
when a populations' growth slows or stops, following a period of exponential growth.
maximum sustainable yield
the maximum number of prey which can be killed such that the number of prey is below carrying capacity and predators thrive.
when a population oscillates around the carrying capacity
factors that control organism/species growth, population, or distribution
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