Q: What type of cell does the sperm cell fertilize? Choices: - fat - bacteria - protein - egg A:
egg

Q: Biochemistry is the study of the chemistry of? Choices: - the Earth - inorganic matter - abiotic factors - living systems A:
living systems

Q: Soil erosion is a natural process, but what can increase it unnaturally? Choices: - human preservation - animal activies - volcanic eruption - human activities A:
human activities