During Mendel's second set of experiments, he allowed the F, offspring from the first experiments to self-pollinate. Which of the following best describes
the results?
A. About 25% of the F2 offspring expressed a different version of the
studied trait than the parents had.
B. About 25% of the F2 offspring expressed the same version of the
studied trait as the parents had.
C. All the F2 offspring expressed the same version of the studied trait
as the parents had.
D. All the F2 offspring expressed a different version of the studied
trait than the parents had.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.