In meiosis I crossing over occurs during

1leptotene

2 zygotene

3 pachytene

4 diplotene

During metaphase the spindle fiber form a lemon shaped array called the

For a given species, an increased evolutionary rate would cause a decrease in A) biodiversity. B) fitness of a species. C) similarity of the individuals in the species. D) the number of new genes in the DNA of the species.

The "Law" of Faunal Succession: a. Was developed by theoretical biologists to explain evolution. b. Was passed in Congress to dictate equal teaching of different theories of origins. c.

If a mutation occurs in a body cell and the mutation changes the phenotype of the individual what will happen to the offspring of the individual?

A 36-year-old veterinarian presents with myalgias, dry cough, and severe headache. His vital signs include blood pressure 138/74 mm Hg, heart rate 82 beats/minute, temperature 39°C, and oxygen saturation 94% on room air.

Sexual reproduction is the reproductive process that 1) keeps species from changing. 2) produces identical offspring. 3) causes mutations. 4) creates genetic variety.

About half of the forests that covered the earth in the early 1900s have been cut down. Discuss the impact this has on carbon dioxide levels in the atmosphere. Support your answer.

How manny amino acids are found in living organisms

A deletion of one base in the original segment of DNA is called a frameshift nutation what will happen to the newly synthesized protein as a result

4. Is predation a density-dependent or density-independent factor?