Cumulative Exam — Cumulative exam Answers
Which is the best example of a question that could be used to develop a testable hypothesis?
A local plant nursery uses large sprinklers to water the plants twice a day. The water contains phosphorus, which is a fertilizer that helps plants grow. Some of the water becomes runoff and ends up in nearby streams and lakes.
The diagram shows a shell fossil.
The diagram shows an energy pyramid.
Which is the most likely reason why scientists change a model?
Nico is reading an article about two fossils that appear to have a common ancestor. Fossil X has a much more complex bone structure than fossil Y.What does this most likely suggest about the fossils?
Janelle thinks that genetic engineering could be used to make a larger fruit rather than cloning the fruit.
Which causes an increase in greenhouse gases?
Pluto was once classified as a planet. However, scientists no longer classify Pluto as a planet. Which is a likely reason for this change?
Clem is homozygous for earlobe type.What does this mean?
A gardener wants to grow plants with large purple flowers. She crosses two parent plants that have large purple flowers in order to produce the desired trait in the offspring.
What is 5.27 × 10–4 written in standard form?
Assuming the bull’s eye is the accepted value, which diagram shows results that are accurate and precise?
Why is it important that scientists conduct multiple observations during an experiment?
Which statement is correct about the differences between theories and laws?
Bipalium kewense is a species of flatworm that can reproduce sexually; however, instead it usually breaks into two pieces, each of which becomes a fully functioning adult.What is the main method of reproduction for these flatworms?
A teacher makes a Venn diagram to compare asexual reproduction and sexual reproduction.
Which scenario would result in a population growth of zero?Use this formula:population growth = (birth rate + immigration) – (death rate + emigration)
A rabbit is heterozygous for fur color. Black fur is dominant (B) and brown fur is recessive (b).Which describes the rabbit’s genotype and phenotype?
A bird population only eats a certain type of plant. One year, flooding washes away most of these plants in an area. What will most likely result?
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