Answer:
Taxonomy is the process that deals with classifying different living things.
Explanation:
Scientists use taxonomy for the better understanding of the process of evolution and the evolutionary relation between different organisms. It is very important to classify different organisms in order to understand the relationship. Carolus Linnaeus is known as the father of taxonomy.
Answer:
Active uptake (which I think you mean active transport) is important when the concentration gradient is against that of a certain substance, so it doesn't cross the membrane through diffusion or passive transport. It is sometimes necessary if a substance needs to move across a membrane but can't do so due to electrical charge or that there is a substance on the other side of the membrane preventing diffusion.
Explanation:
<span>Gametophyte stage is the stage in the life cycle of the plants where the changes happen in the generations which are basically a sexual phase in the plant's life. So the haploid Gametophyte stage produces gametes (eggs and sperm) by mitosis. The spores produced from the meiosis grow into gametophyte which goes through mitosis to attain the above mentioned alterations.</span>