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Answer:
phloem
Explanation:
In plants that bring the food made of leaves to all the other areas of the plant, Phloem is also known as bast. Phloem is made of different cells, called sieve channels, phloem fibers, complementary cells and parenchymatic phloem cells. Primary phloem consists of the epidermal cells of root and shoot tips (zones of new cell production), either of the propellant, the cells of which ripen before elongation, or the metaphloem in which the cells mature after elongation, during development.
Answer:
<em>S. carcini</em> is a parasitic barnacle species
Explanation:
Parasitism: In this case, one of the species is beneficiated, while the other suffers a consequence, reducing its fitness. These interactions are mostly about nutrition, although there might be other benefits too. Some parasite species might coexist with their host, while some others might get them ill to the point of causing death. Parasitic attacks might be very nocive, and even though they are not lethal in a short period of time, they might slowly kill the host.
Parasitic species consume part of the host, but not the whole body. They develop an intimate relationship with their host.
- The Host increases the fitness of the parasite species
- The parasitic species decreases the fitness of the host.
By taking the nutrients from the green crab's blood and sterilizing it, the barnacle causes a decrease in the fitness of the crab. The crab becomes weaker and its survival chances decrease, and they have no opportunity to reproduce. Meanwhile, the barnacle gets stronger and reproduces normally.
Cells are the basic unit of structure and function in organisms.
Needless to say, organisms can’t be a thing if cells didn’t exist.