The cells with the small size have the surface area and volume that are proportional to each other such that this aids with the efficiency of the cell's absorption of nutrients and defecation process of the wastes. Hence, the small dimensions of cells is more efficient than the large ones.
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.
Learn more about symmetry here:
brainly.com/question/22840085
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Commensalism
Mutualism
Parasitism
Answer:
They provide a signaling molecule to begin the signal transduction pathway.
Explanation:
Brainliest!!!
Phlagellum... i have to have 20 characters for a simple answer, so im just typing i can actually submit my answer
