Gravity
Plant roots always grow downward because specialized cells in root caps detect and respond to gravity. This is an example of a tropism. A tropism is a turning toward or away from a stimulus in the environment. Growing toward gravity is called geotropism.
Answer:
Explanation:
mammal(X) :- legs(X,4), arms(X,0).
mammal(X) :- legs(X,2), arms(X,2).
mammal(horse).
arms(horse,0).
As far as I can tell, prolog cannot derive that a horse has four legs. Why so? You may ask. I'd say then, because there isn't any rule(s) for prolog to use in determining the legs. Inference rules can also not be used to determine that the fact that a horse is a mammal and it has 0 arms, it certainly must have 4 legs.
The given blank can be filled with the population.
In the basic terms, when a habitat is destructed, then the animals, plants, and other species, which are thriving in a habitat exhibit a diminished carrying capacity. This further results in the decline of populations and thus extinction becomes more expected. Therefore, it can be stated that the greatest danger to organisms and biodiversity is the procedure of habitat loss.
Answer:when visiting the Channel Islands, you can't help but be amazed by creatures such as the island fox, night lizard, deer mouse, island scrub jay, and ashy storm-petrel, just to name a few of the endemic species. The Channel Islands were also once home to the pygmy mammoth, a now extinct dwarf elephant that evolved in this insular environment.
Along with these endemic species are many of what biologists call invasive species, species that originated from elsewhere but have found a home in the Channel Islands. These include sweet fennel, olive trees, and Australian blue gum trees. For a time, elk and deer could also be found here as well.
Explanation: