The skeletal system since the brain is apart of the skeletal system.
Oxygen cycle The cycling of oxygen between the biotic and abiotic components of the environment (see biogeochemical cycle). ... In the process of respiration oxygen is taken in by living organisms and released into the atmosphere, combined with carbon, in the form of carbon dioxide.
Answer:
1. It was a control variable
2. Type of insulation
3. Temperature
4. Plastic lids <em>or </em>Water <em>or </em>Half Full <em>or </em>Direct Sunlight
Answer:
- During development similar species show similar structures. These may include tails or gills. The presence of these structures provides evidence for common ancestry.
Explanation:
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