Answer:
living things respire to get oxygen for living cells to function. Without air, there is no life. Plants use Carbon Dioxide (together with sunlight and water) to produce energy and give out Oxygen as a by-product. This oxygen is what almost all animals need to survive.
Explanation:
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Answer:
The spinal cord starts at the bottom of the brain system and ends on the lower back as it tapers to form a cone called the conus medullaris.
Explanation:
The bold part is what you need to know!
Answer:
B:The formation of two or more species from a common ancestor.
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Answer:
wind and solar energy rely on weather to generate power unlike fossil fuels
Answer:
C
Explanation:
If the frog has no predators, then it has nothing to keep it from breeding and thriving and so will multiply.
