Ferns. Ferns, horsetails, and their allies make up the second group of land plants, the pteridophytes. These plants all have vascular systems, made up of xylem (flow of water and nutrients from roots to leaves) and phloem (flow of sugars and other metabolic products from leaves to roots).e will not go into the details of this, other than to state the two generations are called the gametophyte (produces gametes) and the sporophyte (produces spores) generations. We need to mention these because the four plant groups each have unique alternation of generations.
What the difference between Intel Cores: Core i3, Core i5, Core i7 â the difference in a nutshell. If you want a plain and simple answer, then generally speaking, Core i7s are better than Core i5s, which are in turn better than Core i3s.
Both Core i5 and Core i7 processors use Turbo Boost, with Core i7 processors achieving higher clock speeds. Hyper-Threading. Intel Hyper-Threading uses multithreading technology to make the operating system and applications think that a processor has more cores than it actually does.