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a young English naturalist, formed theory of evolution following a sea voyage aboard the HMS Beagle in 1830
The development of new types of organisms from preexisting types of organisms over time; resulting from heritable changes in characteristics
phenomenon by which allele frequencies in a population change as a result of random events, or chance
species isolated due to barriers between population groups may arise through disruptive selection
the study of the interactions between organisms and the living and nonliving components of their environment
the dependence of every organism on its connections with other living and nonliving parts of its environment
manufacture their food by capturing energy to produce organic molecules ex most plant, some protists, and some bacteria
cannot manufacture their own food must get energy from eating other organisms, all animals, all fungi, most protists, and many bacteria
arose from 400 millions years of cosmic collisions between gas and dust particles; releasing thermal energy, about 4 billion years old, all elements existed on Earth and in solar system the whole time
Population Growth Factors
Birth Rate, Death rate, Life expectancy, Immigration/Emigration, Density- independent and density-dependent factors
Structures that occur in different species and originated from a structure in a common ancestor
Structures that seem to serve no function but resemble structures with functional roles in other organisms
This is the theory on how we made a more coplicated , Theory that proposes that eukaryotic cells formed from a symbiotic relationship among several different prokaryotic cells
the mechanism for evolutionary change in which organisms that are more well-adaptive to their environment have more reproductive success
(ecology) a group of various species inhabiting the same region and interacting with each other and non living parts of their enviroment
collection of all the organisms that live in a particular place, together with their nonliving environment
The part of the earth and its atmosphere in which the living organisms exist or that is capable of supporting life.
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