which is an activity that increases the genetic variation within a population of earthworms?
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Which is an activity that increases the genetic variation within a population of earthworms? :
Which is an activity that increases the genetic variation within a population of earthworms? GENERAL
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radioactive isotopes
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what best helps scientists determine the age of fossils?
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the development and use of antibiotics
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what was a result of the general acceptance that microoganisms cause disease?
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Terms in this set (15)
radioactive isotopes
what best helps scientists determine the age of fossils?
the development and use of antibiotics
what was a result of the general acceptance that microoganisms cause disease?
evolution of organisms over time
studying the differences between fossils and modern organisms helps scientists better the-
base pairs to separate during transcription and replication
the weakness of hydrogen bonds between the bases of DNA allows-
glucose
x + h20 = y + o2, what substance is most likely represented by y?
structure
in 1950, Erwin Chargaff discovered that the percentage of adenine in DNA equals the percentage of thymine. This proved invaluable to the eventual discovery of which aspect of DNA?
negative
a water molecule is polar. What's its charge?
they both have cells with cell walls
What characteristic do most adult fungi and plants share?
gather accurate data
function of the probe is to-
a reduction in the amount of nitrogen available to the ecoystem
In an ecosystem, a sudden decrease in the number of bacteria in the soil would most likely result in-
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SOL 2014
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QUIZ
SOL 2014
SOL 2014 48%
2 10th Biology Amelia Coltrane 3 years
18 Qs
1. Multiple-choice 1 minute Q.
To classify an organism a scientist finds in the field, which of these will the scientist first compare to other known organisms?
answer choices dietary habits ecological niche physical structure reproductive method 2. Multiple-choice 1 minute Q.
Darwin's explanation for evolution was dependent on which scientific concept?
answer choices
The ability of organisms to learn
The significance of social behaviors to survival
The existence of variations in a population
The relationship between size and survival
3. Multiple-choice 1 minute Q.
Which best helps scientists determine the age of fossils?
answer choices Physical traits Genetic makeup
Reproductive strategy
Radioactive isotopes
4. Multiple-choice 1 minute Q.
Although controversial at first, the germ theory of disease proposed that microorganisms were the cause of many diseases. Which of these was a result of the general acceptance that microorganisms cause disease?
answer choices
The development and use of antibiotics
The belief in spontaneous generation
The link between viruses and RNA
The proof of a supernatural cause for illnesses
5. Multiple-choice 1 minute Q.
A student performed a science experiment to observe if hamsters could learn how to complete a maze faster than mice. He gathered 10 hamsters and 10 mice and placed each one individually into a previously created maze. The student then calculated the amount of time it took each hamster or mouse to complete the maze. He repeated this process ensuring each hamster or mouse completed the maze once daily for 14 days. Using this information on the student's experiment, which of the following statements are correct?
answer choices
The dependent variable in this experiment is the amount of time each hamster or mouse completed the maze
The experiment's independent variable is the type of animal that completed the maze
The title of this experiment could be "The learning abilities of Hamsters vs Mice."
The hypothesis of this experiment could be "If a hamster or mouse is placed in a maze, then it will complete the maze faster when given a reward."
6. Multiple-choice 1 minute Q.
Which of these would most likely result in a change to the current classification of an organism?
answer choices
Discovering organisms with similar physical traits in the fossil record
Finding a related organism that was previously considered extinct
Linking the organism to different ancestors through DNA sequencing
Observing organisms that occupy the same ecological niche
7. Multiple-choice 1 minute Q.
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 five distinct species?
answer choices
Physiological isolation
Geographical isolation
Behavioral isolation
Reproductive isolation
8. Multiple-choice 1 minute Q.
Which characteristic do most adult fungi and plants share?
answer choices
They are both producers
The both have cells with cell walls
They both reproduce through binary fission
They both have multiple nuclei in each cell
9. Multiple-choice 1 minute Q.
In a population of 120 oak trees, 20% of the population has oak wilt disease. What is the number of trees in this population that have oak wilt?
answer choices 10 20 30 40 10. Multiple-choice 1 minute Q.
In an ecosystem, a sudden decrease in the number of bacteria in the soil would most likely result in-
answer choices
Increased water pollution in the soil
Increased precipitation and flooding of the soil
A reduction in the amount of nitrogen available to the ecosystem
A decrease in the number of fossils formed in the soil
11. Multiple-choice 1 minute Q.
Proteins are among the most diverse group of macromolecules because of the-
answer choices
different amino acids that can be connected in many sequences
different types of bonds linking amino acids together
energy phosphate groups that the amino acids contain
link between each DNA base and an amino acid in a protein
12. Multiple-choice 1 minute Q.
Which is an activity that increases the genetic variation within a population of earthworms?
answer choices Binary fission Sexual reproduction Budding Fragmentation 13. Multiple-choice 1 minute Q.
The structural differences between a tadpole and an adult frog are due to the-
answer choices
availability of food sources at different stages
type of DNA present at each developmental stage
combination of genetic material inherited during fertilization
different sets of genes expressed at each stage of development
14. Multiple-choice 1 minute Q.
Which feature do viruses have in common with animal cells?
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