Earth is a living planet because it is habitable by living organisms. It has a perfect condition for life hence organisms exists not only on the land, but also in the water and the atmosphere. Mars on the other hand does not have the correct atmosphere, and a temperature not conducive for life.
Answer:
The sun should be the correct answer.
The sun provides energy to plants, that provide energy to herbivores, that provide energy to.....
There are three kinds of plate tectonic boundaries: divergent, convergent, and transform plate boundaries. This image shows the three main types of plate boundaries: divergent, convergent, and transform. Image courtesy of the U.S. Geological Survey
Answer:
A: Nematodes
Explanation:
Nematodes are a subdivision of the animal kingdom known as Nematoda. The group consists of round/cylindrical worms without body segments. They are mostly microscopic, bilaterally symmetrical with a wide range of habitat. Many of the species in this group are endo-parasites of man and other higher animals.
The flatworms belongs to the Platyhelminthes phylum. They are unsegmented and parasites of other animals just like nematodes. However, they are flat in shape as opposed to cylindrical shape of nematodes.
Earthworms belong to the phylum Annelida. They are segmented with nervous system.
In this case, the Trichinella worms seem to be most similar to Nematodes in that:
- <em>They have cylindrical bodies</em>
- <em>They are unsegmented</em>
- <em>They are parasitic in nature</em>
The correct option is A.
