Spotting what kind of bird during the daytime foretold death?

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Astudent analyzed ears of corn that demonstrated two traits in the f2 kernels, purple or white colors and smooth on wrinkled shapes. a tabulation of 135 individual kernels gave the following results: purple and smooth = 75 white and smooth = 28 purple and wrinkled = 24 white and wrinkled = 8 what would be the only phenotype present in the f1 ger

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?