A shell is considered as biotic (living) because it is a hard, rigid covering of many animals such as snail, sepia, pila, turtles, sea urchins. A shell is protective outer layer of these soft bodied animals.
2. third quarter 7. first quarter 1. waxing gibbous 8. waning gibbous 5. waning cresent 3. waxing cresent
Answer:
Organisms are part of an environment and are continually adapting to the changes to live. These environmental changes and the adaptation play a major role in evolution of organism.
Explanation:
Carbon enters the atmosphere as carbon dioxide from respiration and combustion. Carbon dioxide is absorbed by producer to make carbohydrates and photosynthesis. consumers feed on the plants passing the carbon compounds along the food chain.<span />
Answer:
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Explanation:
