Examlex
Using a phone book as a sampling frame would not result in sampling frame error.
Chloroplasts
Organelles found in plant cells and eukaryotic algae that conduct photosynthesis, capturing light energy to synthesize organic compounds such as glucose.
Photosynthetic Autotrophs
Organisms that can manufacture their own food through the process of photosynthesis, using light energy to convert CO2 and water into glucose.
Atmosphere
The layer of gases surrounding a planet, held in place by gravity, essential for maintaining life by providing breathable air and protecting from harmful solar radiation.
Prebiotic Soup Hypothesis
A theory suggesting that life on earth began in a "soup" of organic molecules, possibly in the oceans, that eventually led to the formation of more complex molecules and early life forms.
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