During volume changes in the thoracic cavity, <u>Diaphragm</u> is primarily responsible for changes in length.
The main components of the respiratory system are the two lungs. They are located in the thoracic cavity, which is the area to the left and right of the heart. The rib cage safeguards the cavity. Other components of the respiratory system are supported by a muscular sheet known as the diaphragm.
The diaphragm contracts and pulls downward upon inspiration, or when the lungs inhale. The muscles between the ribcage tighten and pull upward at the same time. As a result, the pressure inside the thoracic cavity lowers and its size grows. Air rushes in as a result, filling the lungs.
Thus, diaphragm is responsible for the increase in length of the thoracic cavity.
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Autotrophs use photosynthesis, A.
G1: Cells just doing its daily functions, growing
S: DNA is replicated
G2: Cell keep growing until instructed
Mitosis: Cell division (PMAT-Prophase, Metaphase, Anaphase, Telophase, in that order)
Option (A) is bilaterally symmetrical is correct.
An organism that exhibits a head with sensory equipment and a brain probably also is bilaterally symmetrical.
<h3>What is mean by bilateral symmetry?</h3>
- Symmetry where the same anatomical components are positioned on either side of a median axis, allowing for only one plane to split the subject into two nearly identical halves.
- Including Chordates, Arthropods, Molluscs, and Annelids.
- They are able to move ahead in a straight line because they have bodies that are bilaterally symmetrical (the same on both sides along an axis).
- Animals who could go from point A to point B swiftly and effectively would have been more successful in evolutionary history and would have been selected for over those that couldn't.
- The "head" and "tail" (anterior vs. posterior), front and back (dorsal vs. ventral), and right and left sides are all present in animals with bilateral symmetry.
- All real animals are bilaterally symmetrical, with the exception of those possessing radial symmetry.
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Just write the important parts use good grammar use some of your own words and you should be fine