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Which helps scientists best determine the age of fossils?
Information about the ecosystem's characteristics before the adelgid infestation
30
a hypothesis
Radioactive isotopes
gather accurate data
The resources of the environment must be unlimited.
Geographic isolation
evolution of organisms over time
In a population of 120 oak trees, 25% of the population has oak wilt disease. What is the number of trees in this population that will have oak wilt?
Information about the ecosystem's characteristics before the adelgid infestation
30
a hypothesis
Radioactive isotopes
gather accurate data
The resources of the environment must be unlimited.
Geographic isolation
evolution of organisms over time
A student is investigating the effect of plants on indoor air quality and states, If plants are added to an indoor environment, the air quality will improve. This statement is an example of --
Information about the ecosystem's characteristics before the adelgid infestation
30
a hypothesis
Radioactive isotopes
gather accurate data
The resources of the environment must be unlimited.
Geographic isolation
evolution of organisms over time
Studying the differences between fossils and modern organisms helps scientists better understand the:
Information about the ecosystem's characteristics before the adelgid infestation
30
a hypothesis
Radioactive isotopes
gather accurate data
The resources of the environment must be unlimited.
Geographic isolation
evolution of organisms over time
Students used a dissolved oxygen probe during a laboratory activity involving 1000 mL samples of pond water. The function of the probe is to
Information about the ecosystem's characteristics before the adelgid infestation
30
a hypothesis
Radioactive isotopes
gather accurate data
The resources of the environment must be unlimited.
Geographic isolation
evolution of organisms over time
Five species of frogs that live in separate habitats within 5 non-overlapping ranges along the Mississippi River share a common ancestor. Which process is most likely responsible for the formation of these different species?
Information about the ecosystem's characteristics before the adelgid infestation
30
a hypothesis
Radioactive isotopes
gather accurate data
The resources of the environment must be unlimited.
Geographic isolation
evolution of organisms over time
An insect called the hemlock woolly adelgid was introduced to a VA ecosystem. This pest feeds on the nutrients stored in the hemlock tree, resulting in the death of the tree. Which kind of data would help a student evaluate the effect of the insect
Information about the ecosystem's characteristics before the adelgid infestation
30
a hypothesis
Radioactive isotopes
gather accurate data
The resources of the environment must be unlimited.
Geographic isolation
evolution of organisms over time
For a growth curve to continue to increase exponentially, which of these most occur?
Information about the ecosystem's characteristics before the adelgid infestation
30
a hypothesis
Radioactive isotopes
gather accurate data
The resources of the environment must be unlimited.
Geographic isolation
evolution of organisms over time
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