Study guides, Class notes & Summaries

Primavera Biology B Unit 5 Exam Questions and Answers Already Passed What ecological level is more specific than an ecosystem but less specific than a population? community What are examples of secondary succession? Select all that apply. A severe drought kills most of the species in an area. Once the area gets more rain, new vegetation starts to appear. A mudslide removes most of the plant life from a habitat. Afterwards, some mosses from neighboring habitats start to move in. Which of the ...

QUESTIONS AND ANSWERS

QUESTIONS AND ANSWERS

Primavera Biology B Unit 4 Exam Questions and Answers 100% Solved Which option correctly describes how Earth's temperature has changed during its history? Earth was initially very hot. It gradually cooled down. Which theory suggests that life on Earth originated from microbes carried to Earth by meteorites or comets? panspermia What summarizes the RNA world hypothesis? RNA was the first biomolecule to evolve and did so before DNA and proteins. Which options describe Darwin's theory of natu...

Primavera Biology B: Unit 1 Exam Latest Update Graded A A plant has red flowers. In this species, a red flower color is the dominant trait over a white flower color. What can you say about this plant? If the genotype is Rr, the phenotype will be red-flowered. Which observation led Mendel to the idea that traits were controlled by more than a single factor? A trait that was not seen in the first generation may later reappear in the second generation. The two different X in Y individuals plays ...

Primavera Biology B Unit 4: Evolution Questions and Answers Graded A CHECKPOINT 17 What gas present in today's atmosphere was largely absent from early Earth's atmosphere? oxygen What are some possible sources for early organic molecules? Select all that apply. existing inorganic molecules forming into more complex organic ones by using energy from lightning simple inorganic compounds arriving on Earth through meteorites or other objects Which option correctly replaces X and Y? The Mill...

Primavera Biology B Unit 3: Genomics (2023/2024) Already Graded A CHECKPOINT 12 Genes located close together on a chromosome tend to be inherited together. What is this called? genetic linkage Which of the following genes are linked in pea plants? flower color and pollen-grain shape A Punnett square incorrectly predicts the outcome of a dihybrid cross. There are only two phenotypes in the F2 offspring instead of four. Why? The genes are completely linked. A Punnett square predicts that the...