The correct option is (C) A digestive system with a single opening.
Which characteristic is shared by both cnidarians and Flatworms?
- The class Soft-bodied stinging creatures like corals, sea anemones, and jellyfish are categorized as cnidaria. Numerous aquatic settings contain cnidarians. Sea anemones can be found all around the world, from the equator to the freezing northern regions and from small tide pools to the deep ocean floor.
- Simple flatworm-like creatures belong to the phylum Platyhelminthes. Flatworms are parasites that live in or on other animals and are found on land, in fresh water, and in the ocean (e.g., tapeworms). Flatworm parasites can harm or even kill the host organism when they dwell on or inside of other species, including humans.
- Although flatworms, like cnidarians, have a digestive system with only one opening into the digestive cavity, the cavity in independently living marine flatworms branches into every section of the body.
Learn more about the Phylum platyhelminthes with the help of the given link:
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Answer: Nasal breathing drives oxygen more efficiently into the lower lobes of the lungs rather than staying in the upper lobes as in mouth breathing. With nasal breathing, all five lobes of the lungs are used to breathe rather than just the upper two. The lower lobes of the lungs have more parasympathetic, calming and repairing nerve receptors which are activated during nasal breathing exercise. The upper lobes have more sympathetic or fight or flight stress receptors that are activated during mouth breathing exercise.
Explanation:
Answer:
See the answer below
Explanation:
<em>The DNA of eukaryotic organisms being present in the nucleus while the protein-synthesizing organelle, the ribosome being present in the cytoplasm poses a spatial problem. It means that transcribed DNAs (messenger RNA) in the nucleus would have to somehow be transported to the ribosome in order for the cell to successfully synthesize proteins.</em>
The problem of transporting the messenger RNA is solved by two features of the cell:
- The presence of pores in the nuclear envelop
- The presence of transport proteins in the nucleus
<u>The mRNA binds to the transport proteins to form mRNA-protein complexes and is transported through the nuclear pores, often with the assistance of ATP. </u>
Carbon, because it is the backbone of all organisms
