Explain the process of evolution through natural selection.
What will be an ideal response?
When individuals within a population are born with unique traits and those traits are advantageous for survival, those in the population with the advantageous traits survive and reproduce better. The advantageous traits are inherited in the population's offspring. Over time, those with the advantageous traits become more common. If a population becomes distinctly different than the rest of the species population, this is speciation. This is process is responsible for the biodiversity of life.
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A surface low pressure area with a deep upper-level trough to the west will tend to move toward
the southwest. a. true b. false
What type of rocks can usually be found in coastal beach environments?
a. Arkose and conglomerate b. Well-sorted, medium grained sandstone with ripple marks c. Sand with mud cracks d. Till e. Both a and b
Since the 1990s, ________ have killed an estimated 30 billion conifers in the western United States
A) pine shoot beetles B) bark beetles C) foresters D) ladybird beetles E) invasive fungi
Historical evidence suggests that substantive climate change
A. nearly always has occurred over several million years. B. nearly always occurs only during pronounced movement of tectonic plates. C. can happen in as short a period as a few decades. D. is very new, limited in appearance to the last few centuries.