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Which of the following is the strongest piece of evidence for why some scientists believe that we are at the start of a sixth mass extinction?

If the frequency of one allele in a population is 0.91 in a population with two alleles at a particular locus, what is the frequency of the alternate allele?

Hypophosphatemia (vitamin D—resistant rickets) is inherited as a sex-linked dominant trait. The relevant gene is found on the X chromosome. What is the expected outcome of a cross between a homozygous recessive woman and a man with hypophosphatemia?

Experience with dog breeding has taught geneticists ________.

Which of the following is an example that results from directional selection?

Read the following scenario to answer the following questions.The earliest cells detectable in fossils were different from the cells in animals, plants, fungi, and protists living today. These first prokaryotic cells gave rise to eukaryotic cells approximately 1.7 billion years ago. The structure of eukaryotic cells today suggests how they might have evolved from their prokaryotic ancestors. Scientists examining mitochondria and chloroplasts now think that these organelles were probably free-living prokaryotes before becoming a part of eukaryotic cells long ago.What evidence suggests that mitochondria might have evolved before chloroplasts?

Which of these is a characteristic of Type I survivorship?

When did male fur seals reach carrying capacity?

The word “theory” in theory of evolution is best replaced by ________.

The CORRECT sequence of events occurring during transcription is ________.