The answer is; A
In pteridophytes, the sporophytes (of the haploid stage) produce spores. The diploid stage in pteridophytes may occur when tow spores fuse and develop into a prothallus (diploid stage of the pteridophytes).
Fungo too produces spores by the sporangiophores (haploid stage). Occasionally, two horizontal hyphae between two species of fungi, may fuse at the tips and form a zygote through karyogamy and plasmogamy.
Answer:
After being hunted almost to extinction, the humpback whale population has rebounded dramatically. Rapidly melting Antarctica ice poses a threat to coastal cities, but there is at least one species that is benefiting: Humpback whales are flourishing these days, due to an abundance of krill.
Pre-hunting population size may have been as many as 200,000-300,000 whales. They were estimated to number around 2,300 in 1998 and to be increasing between 2.4-8.4% per year. The IWC is undertaking an assessment of Antarctic blue whales at present.
The independent variable is that in which the result is dependent on. For experiments, this is usually the item being varied. For this case, what is being varied is that one group is given caffeine while the other is not. That makes the amount of caffeine given to be our independent variable.
The answer is all of the above
A hypothesis is a vital part of not only the scientific method but in experimenting, whether or not you are familiar with the method. A hypothesis is important, because by stating your perspective and percieving on the topic you are able to build on that, despite how much it may be wrong or how much it may be right. It's the first step to forming a final conclusion. With a hypothesis you can fully build and construct the final results and conclusion to any experiment or topic you are focusing on.
