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The idea that life on Earth originated on another world, possibly Mars, is the hypothesis known as ____________________.

An extant species is one that died off in the past, like the dinosaurs.

Which of the following flower structures is male?

The Miller-Urey experiment set out to understand if simple molecules (CH4, H2, CO, CO2, NH3, N2, H2O) in the early atmosphere could react to form building blocks of life.  The experiment was able to generate _____________ and further experiments also generated __________________.

The ____________ is an example of a living fossil from the Cambrian period.

_______ are internal membrane structures within chloroplasts that contain photosynthetic pigments?

The Cambrian explosion marked a rapid explosion in the diversity of complex multicellular life forms on Earth approximately 500 million years ago.

Which of the following best represents the evolutionary sequence of land plants?

For the following scenario, select the matching item. An analyst for Redfin.com wanted to describe the relationship between square footage and asking price. The analyst took a random sample of homes currently listed for sale in the Seattle area and recorded the square footage and the asking price of the home.

If all values in a dataset were increased by 10, what would happen to the standard deviation?