What event is thought to have occurred about 3.5 billion years ago?
A. The first Eukaryo...
Biology, 26.02.2020 01:43 vnfrancis3716
What event is thought to have occurred about 3.5 billion years ago?
A. The first Eukaryotic cells appeared
B. Earth formed from cosmic bodies and debris combining
C. Earth cooled enough for liquid water to exist
D. The first prokaryotic cells appeared
Answers: 3
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Carbon compound that stores and transmits genetic information is called
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Biology, 22.06.2019 23:40
Attached earlobes are a reccesive trait in humans. in the tree below, people with attached earlobes are shaded in. which best describes labeled x in the tree? a: a female with one recessive allele b: a female with no recessive allelesc: a male with no recessive allelesd: a male with one recessive allele
Answers: 1
Biology, 23.06.2019 04:00
3. what are the major evolutionary trends that developed among major vertebrate groups, specifically those that allowed for the transition from aquatic to terrestrial life?
Answers: 2
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