Q: Excretion of ions occurs mainly through what organ? A:
OPTIONS:
- Heart
- lungs
- tissues
- kidneys
kidneys
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Q: What chromosome determines the sex of an organism? A:
OPTIONS:
- ribosome
- S chromosome
- autosome
- sex chromosome
sex chromosome
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Q: The law of conservation of matter, which says that matter cannot be created or this? A:
OPTIONS:
- abandoned
- damaged
- stopped
- destroyed
destroyed
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Q: The two stages of photosynthesis are the light reactions and what? A:
OPTIONS:
- digestive cycle
- respiratory cycle
- reproductive cycle
- calvin cycle
calvin cycle
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