Pollen tube growth is one of the most fascinating—and essential—phenomena in the life cycle of flowering plants. After a compatible interaction between pollen grains and the stigma surface, the pollen germinates and forms the pollen tube, which grows through the stigma, style, and transmitting tract to deliver the sperm cells to the ovule."
2) Although pollens of many species germinate in simple aqueous media, stigmas do not provide satisfactory sites for the germination of most foreign pollen... Stigmas not only provide the proper conditions for the germination of pollen from their particular species, they actively inhibit the germination of pollen of many unrelated species.
Down syndrome, turner syndrome, Klinefelter syndrome, and fragile X syndrome.
There is an expected increased demand for both hydrologists and environmental scientists because of the increased demand for use of natural resources and the need to enforce all of the environmental laws and regulations. They also need to analyze human impact on the environment and ensure all of the proper disposal of human wastes. The hydrologists and scientists also advise policymakers in the government about numerous other things. They will also clean up polluted areas all over the world. The goal for these workers is to reduce industry waste. The men and women who do this job works in the field, offices, and also in laboratories. This is usually a full time job. The starting yearly salary for these specialists is an estimated $67,450 U.S dollars, as of May 2016. The expected job growth is 11% by by 2024. A person will need a Bachelors degree to pursue this job. So, the correct answer will be B.
The best answer would probably be D, because they'd need the enough land or they wouldn't even be able to think about building it.