What are the remains of living things that have been preserved in the earth's crust
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Fossils, although technically they are not preserved in the earths crust; the minerals in the bones and pore spaces have been replaced by other harder minerals which take much longer to weather.
There are a number of different fossilization processes. See this link : How are Fossils Formed?
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In which phase are chromosomes called chromatin
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Interphase
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By what process is the DNA code duplicated
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replication
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How many chromosomes are in a normal human body
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There are 23 pairs of chromosomes in a normal human body which
means 46 chromosomes. People with down's syndrome have 47
chromosomes.
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During meiosis twin chromosomes split apart and move to the
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poles
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What form of asexual reproduction is shown here for a salamander
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parthenogenesis
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Cards in this guide (6)
What are the remains of living things that have been preserved in the earth's crust
Fossils, although technically they are not preserved in the earths crust; the minerals in the bones and pore spaces have been replaced by other harder minerals which take much longer to weather.
There are a number of different fossilization processes. See this link : How are Fossils Formed?
In which phase are chromosomes called chromatin
Interphase
By what process is the DNA code duplicated
replication
How many chromosomes are in a normal human body
There are 23 pairs of chromosomes in a normal human body which
means 46 chromosomes. People with down's syndrome have 47
chromosomes.
During meiosis twin chromosomes split apart and move to the
poles
What form of asexual reproduction is shown here for a salamander
What are the remains of living things that have been preserved in the earth's crust
The second law of thermodynamics states that in a closed system entropy will increase meaning that complex things should break down into simpler ones Evolutionary theory suggests that living things
When DNA duplicates what else duplicates
At the end of mitosis what forms around the chromosome groups