Lamarck’s theory of evolution includes the concept that new traits appear because: A. Use of disuse

B. The natural variations are present within a population

C. The environment is unchanged

D. Natural variation and natural selection

New york city has 2,181 inhabitants per square mile. the state of alaska has 1.03 inhabitants per square mile. ecologists would say alaska has a low exponential growth population density birth rate carrying capacity

Environmental impacts on evolution : mastery test

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.