procreation
evolution
Biogeographic observations indeed suggest that a evolutionary process caused new species to arise, through the process we call natural selection. This is due to an animals adaptability in it's environment.
The breakup of the Pangea is a process that is continuing today. The Atlantic Ocean is broadening, and the Pacific is shrinking at the rate of approximately an inch a year.
The rise of two species from one species in a continuing process that resembles the branching of a tree or bush. This is called phylogenetic evolution and is the main driver of species arising over time.
If there isn't another parent for the species to reproduce with, it can make offspring on its own, continuing the species.
C:Genetic drift
genetic drift
Having young, who grow up to have more young, who grow . . . etc
FOR PENNFOSTER....the answer is C) genetic drift
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The species is the combined genus and species
A call to the exec() family of functions in UNIX does not normally return to the calling process. This is because the call replaces the invoking process'es image, thus there is nothing to return to. If an error does occur, exec() returns -1, and sets an error value that can be interrogated, but the answer to the question is, usually, never. The normal paradigm for launching a process and getting control back, such as by the shell, is to call fork(), which splits the invoking process into two identical processes, one continuing to monitor the other. The other process then calls exec(), replacing itself. When it exits, the first process can detect that and retrieve its return value.