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Myofibrils or muscle cells have proteins that help cell expand and contract to certain extent.
Certain metals also undergo expansion and contraction.
When you increase the temperature of metal, it expands and when you decrease the temperature of metal it will contract in length It wont be a significant difference in length but it is observed in most metals.
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DevinExpansion activities include hiring new employees, launching new product lines, or entering new markets. Contraction activities could involve downsizing staff, discontinuing unprofitable product lines, or closing underperforming locations. Both types of activities are important for managing a company's growth and competitiveness.
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What objects show expansion and contractions?
Almost all of them, but bridges can be a very good example. The small rubber tracts are for when the bridge expands and contracts. Metals also do a good job. There is a way to make a quazi thermometer that uses the expansion and contraction of metal wire to pull a pin.
Why does the expansion joints in a sidewalk get narrow in the summer and get wider in the winter?
Expansion joints in sidewalks are designed to accommodate the natural expansion and contraction of the concrete due to temperature changes. In the summer, the concrete expands with the heat, causing the joints to narrow. In winter, when the concrete contracts in the cold, the joints widen to prevent cracking and damage to the sidewalk.
What are some examples of specialized cells present in cnidarians?
Some examples of specialized cells in cnidarians include cnidocytes (stinging cells) used for defense and capturing prey, sensory cells for detecting movement and light, and muscle cells for movement and contraction. Additionally, some cnidarians have specialized cells that secrete mucus or digestive enzymes for feeding.
What are five example of animal kingdom?
Mammals: Examples include dogs, elephants, and whales. Birds: Examples include eagles, penguins, and parrots. Reptiles: Examples include snakes, turtles, and crocodiles. Amphibians: Examples include frogs, salamanders, and newts. Fish: Examples include sharks, goldfish, and cod.
What are the examples of protochordata?
Examples of Protochordata include Lancelets (Cephalochordata) and Tunicates (Urochordata). These organisms are marine chordates that exhibit characteristics of both invertebrates and vertebrates.
