1 The process by which organisms use chemical energy to produce carbohydrates is 2 A collection of all the organisms that live in a particular place, together with their physical environment, is a(an)

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A chemical substance that an organism requires to live is a(an)

3 Autotrophs, which make their own food, are also called

4 A group of ecosystems that have the same climate and dominant communities is a(an)

5 A process in which elements, chemical compounds, or other forms of matter are passed from one organism to another and from one part of the biosphere to another is a(an)

Describe five factors that influence the value of fuel

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.