Answer:
The pectoralis muscle moves the front limb inward and the transverse abdominal muscles moves the posterior limiting membrane up. The limbs are brought into the shell, pushing up on the lung, causing air to expel by the muscles contracting.
To Breathe air in, the serrates muscle pulls out, the abdominal oblique pulls down and the weight of the viscera allows air to flow in, via negative pressure.
Explanation:
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The muscular system contributes to maintaining homeostasis by working with other body systems to regulate body temperature and dilate or constrict blood vessels close to the skin's surface, according to OpenCurriculum. The muscular, nervous, cardiovascular, endocrine and integumentary systems work together to cause sweating and shivering in the body, which contribute to homeostasis.
Cell wall.......... Hope it helps, Have a nice day :)
Flowering plants reproduce sexually through a process called pollination. The flowers contain male sex organs called stamens and female sex organs called pistils. Cross-pollination happens when the wind or animals move pollen from one plant to fertilize the ovules on a different plant.
<span>Some bacteria in the soil fix nitrogen into useful forms for plants to use them. This conversion of nitrogen helps plants grow. Without the bacteria in the soil a lot of the plants would not be able to grow.</span>
