BYU BIO 250 (FINAL EXAM) WITH ALL
CORRECT & VERIFIED ANSWERS/ALREADY
GRADED
LECTURE 13 A+
1. What are
the 1. Compression and impression fossils (ex: footprints left in wet cement)
four general cate- 2. Permineralized fossils - sediments and minerals precipitate in cells
(ex: fossil
gories of trees, fossil bones)
fossils? 3. Casts and molds - when remains decay after being buried in
sediment (ex: endocast of brain)
4. Unaltered remains - specimen in peat bogs, frozen, mummified, etc.
(ex: wooly mammoth frozen solid in ice, humans in peat bogs)
1. Geographic
2. What are the 2. Taxonomic (certain species are more likely than others)
three major 3. Temporal (things that lived 1 billion years ago)
weaknesses in
the fossil
record?
4. How can we know relative dating and absolute dating
how old some-
thing is?
5. Types of
relative dating
6. Lecture 15
7. Ways to be
an- tiracist 8. President Nel- son's invitation
1/
3
CORRECT & VERIFIED ANSWERS/ALREADY
GRADED
LECTURE 13 A+
1. What are
the 1. Compression and impression fossils (ex: footprints left in wet cement)
four general cate- 2. Permineralized fossils - sediments and minerals precipitate in cells
(ex: fossil
gories of trees, fossil bones)
fossils? 3. Casts and molds - when remains decay after being buried in
sediment (ex: endocast of brain)
4. Unaltered remains - specimen in peat bogs, frozen, mummified, etc.
(ex: wooly mammoth frozen solid in ice, humans in peat bogs)
1. Geographic
2. What are the 2. Taxonomic (certain species are more likely than others)
three major 3. Temporal (things that lived 1 billion years ago)
weaknesses in
the fossil
record?
4. How can we know relative dating and absolute dating
how old some-
thing is?
5. Types of
relative dating
6. Lecture 15
7. Ways to be
an- tiracist 8. President Nel- son's invitation
1/
3
