Answer:
Bilateral symmetry allows for directional motion. The coelom cushions organs allow freedom of motion.
Explanation:
Most animals are bilaterally symmetrical in nature with a line of symmetry dividing their body into two sides left and right sides along-with a “head” in top and “tail” in the bottom. Bilateral symmetry consisting an equal arrangement of symmetry about a vertical plane running from top to bottom.
The coelom is known as the main body cavity present in most animals. It is positioned inside the body to surrounds the digestive tract and other organs. In some animals, it is lined with mesothelium. In other animals, such as mollusks, it is undifferentiated. In animals, it helps to allow freedom of motion.
The two protists that evolved from a symbiotic relationship of organisms are red algae and euglena.
<h3>What is symbiotic relationship of organisms?</h3>
The symbiotic relationship is defined as the type of close relationship between two different organisms where by one or both benefit from each other.
According to the theory of endosymbiosis, which states that in symbiosis which involves a larger cell that serves as a host and a smaller cell that is referred to as an endosymbiont.
Therefore the two protists that evolved from a symbiotic relationship of organisms, which resulted in eukaryotic organisms containing chloroplasts is the red algae
euglena.
Learn more about endosymbiosis here:
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Answer:
A neutron does not affect the charge of an atom because it has no charge but it will change the mass of the nucleus. Adding or removing neutrons from the nucleus creates isotopes.
Explanation:
