Answer:
The answer should be C
Explanation:
If you look at the the graph, C points to the time period after mammals appeared. Since birds are mammals, they should have appeared after the time that mammals first came to be on Earth.
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1) 28 2) ovaries 3) fallopian tube 4) ovaries 5 & 6) ovary 7) ovulation 8 & 9) uterus 10) fallopian tube 11) sperm cell 12) uterus 13) fertilized 14) blood 15) uterine 16) vagina 17) 28 18) menstruation
The answer is Event 1. A solar eclipse occurs when the moon gets between the sun and Earth and blocks the sunlight from reaching Earth's surface during daytime, thus casting a shadow over Earth. A lunar eclipse as represented by Event 2 happens when the moon passes into the shadow of Earth at night and we can see the moon darken.