The answer is B. Paleozoic
This era was the first era where insects, amphibians, and reptiles roamed the Earth.
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Answer:
Which type of electromagnetic radiation has more energy than visible light and can pass through the human body?
answer 1 = A Xrays
answer 2= temperature,timing of solar flares
answer 3= visible light
answer 4=ultraviolet light, radio waves
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Explanation:
An observation is something you notice about what you're reading/looking at, while an inference is something you put together based on information you've gathered.
Dependent variable. Is manipulated
<h2>Energy </h2>
Explanation:
Energy flows in only one direction through an ecosystem
- The Sun supports most of Earth's ecosystems
- Plants create chemical energy from abiotic factors that include solar energy and chemosynthesizing bacteria create usable chemical energy from unusable chemical energy
- The food energy created by producers is passed to consumers, scavengers, and decomposers
- Energy flows through an ecosystem in only one direction, it is passed from organisms at one trophic level or energy level to organisms in the next trophic level
- Most of the energy at a trophic level – about 90% – is used at that trophic level and organisms need it for growth, locomotion, heating themselves, and reproduction
- So animals at the second trophic level have only about 10% as much energy available to them as do organisms at the first trophic level
- Animals at the third level have only 10% as much available to them as those at the second level