IMPORTANT NOTES: You are required to complete at least two EOC assignments. If you score an 80% or higher, you will receive +10 pts on those first two EOC assignments. (Note: If you complete additional EOC assignments, then you can earn +5pts for each one if you score 80% or higher).
DO NOT SUBMIT IF YOU ARE UNSURE OR HAVE QUESTIONS. Please use your notes and ask questions as needed.
IMPORTANT NOTES: You are required to complete at least two EOC assignments. If you score an 80% or higher, you will receive +10 pts on those first two EOC assignments. (Note: If you complete additional EOC assignments, then you can earn +5pts for each one if you score 80% or higher).
DO NOT SUBMIT IF YOU ARE UNSURE OR HAVE QUESTIONS. Please use your notes and ask questions as needed.
When Darwin first proposed his theory of evolution by natural selection, the field of genetics did not yet exist. In what way does genetic science now contribute to the study of evolution?
The diagram above illustrates an embryonic stage of two organisms. Using the diagram as evidence, which of the following conclusions is best supported?
Theodosius Dobzhansky discovered that successful species tend to have a wide variety of genes that do not appear to be useful to the species in its present environment. What did this discovery help explain about genetics and the changes that occur in a species over time?
The pictures above show similarities among the forelimbs of three mammals. These similarities provide evidence in support of which of the following hypotheses?
How does drug resistance evolve in bacteria?
Genetic drift states that the random effects of everyday life can cause differences in the survival and reproduction of individuals. What is one effect of genetic drift on evolution?
A mutation may make no difference to an individual. Even if the mutation results in a nonfunctional protein, the body’s cell may have a functional copy of the gene as its second allele. This new nonfunctioning version could be passed on as a recessive allele. This kind of mutation is the probable origin of many recessive disorders. Heterozygous carriers have the opportunity to carry the trait undetected and potentially pass it to their offspring. However, only characteristics that are expressed can be targets of natural selection. Therefore, natural selection will only target homozygous recessive organisms that would be unlikely to reproduce.
What does this explain?
Scientists studied a species of phytoplankton. These phytoplankton are an important part of marine food webs and are major primary producers. As all organisms are regulated by their environment, so are the phytoplankton. The scientists looked at the relationship between the populaton of the phytoplankton and viruses found in the same environment. They created three environments in a laboratory setting to collect data on the numbers of phytopankton and viruses over a period of time and graphed the results once they were averaged, as shown on this chart.
The scientists claimed that the growth and stability of the phytoplankton populations were affected by the viruses. Using the information given, which TWO arguments support this claim? (Select TWO choices.)
Ruby-throated hummingbirds are found throughout eastern North America. They are omnivores, feeding on nectar, pollen, tree sap, insects, and spiders. They get all the water they need from nectar. Most nests are in forested areas, citrus groves, marshes, and scrubland. The hummingbirds breed in the spring and the summer, and females raise one to three broods per breeding season. Most of the hummingbirds migrate to Mexico or Central America for the winter. Many fly nonstop for 20 hours to cross the Gulf of Mexico. However, increasing numbers of the hummingbirds have begun to winter north of the gulf. Researchers have documented that the hummingbirds’ winter range has expanded northward by about 300 kilometers in recent years.
Which explanation BEST predicts the ability of the hummingbirds to survive their first winter in this new environment?
The ribosomal protein L4, produced by the rpl4 gene in E. coli, is also found in many other organisms. Which of the following provides the strongest support for the claim that E. coli shares a common ancestor with all other organisms?
