<span>A heterogeneous mixture has particles that are not uniformly distributed, but a homogeneous mixture has particles that are uniformly distributed.
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Answer: The Americas
Explanation:
Scientists use DNA to track the migration of humans across the planet. After a group migrates away from their ancestral homeland, any mutations that occur are not mixed with those left in the ancestral population. Therefore, DNA samples taken from __the Americas__ would have the most unique mutations, representing the most recent population to migrate to a new area.
Answer:
1. Precambrian rocks are very old.
2. They have very few fossils.
Dependent and Independent variables are regarded as variables in mathematical and statistical modeling and of course in some other aspects.
The independent variable is this case is the amount of salt.
- In this kind of scenario, one can think of independent and dependent variables in terms of cause and effect.
- An independent variable is the variable we assume to be the cause, while a dependent variable is assumed as the effect.
- Therefore, with this case, the amount of salt would cause a decrease in the number of plants.
- While the effect of increasing the amount of salt would be seen in the number of plants.
Learn more about dependent and independent variable: brainly.com/question/25223322
