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34kurt
3 years ago
7

Why is a circulatory system is important in meeting the needs of all cells throught an animals body

Biology
1 answer:
Anarel [89]3 years ago
3 0
Provide oxygen to all the cells
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Mitosis cannot occur until the genetic material inside of a cell has been copied. where in the cell is this genetic material loc
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Why is the back-work ratio much higher in the brayton cycle than in the rankine cycle?
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The back-work ratio much higher in the brayton cycle than in the rankine cycle because a gas cycle is the Brayton cycle, while a steam cycle is the Rankine cycle. Particularly, the creation of water droplets will be a constraint on the steam turbine's efficiency. Since gas has a bigger specific volume than steam, the compressor will have to work harder while using gas.

Recall the steady flow device's shaft work expression.

W =-∫ V dP +...

As it is in the pump (liquid) compared to turbine (superheated vapor) in the Rankine cycle, the specific volume in the compressor is not significantly less than the specific volume in the turbine in the Brayton cycle.

A thermodynamic cycle that transforms heat into mechanical energy is the Rankine cycle, often known as the Rankine vapor cycle.

The operation of various heat engines that use air or another gas as their working fluid is described by the Brayton cycle, a thermodynamic cycle.

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2 years ago
Joints are generally immovable or slightly moveable
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3 years ago
genetics and the environment both play roles in cell differentiation. which is the best example of an environmental factor influ
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Answer: etiolation of plant growth in shade, with fast growing cell without chloroplasts. Out of shade, cell differentiate again to produce photosynthesising cells

Explanation: It is a subjective decision as to what is ‘best’. Good examples are plant responses to changes in the nutrient supply.

when soil nitrogen is depleted some plants, such as legumes, grow nodules on their roots, with cells that release chemical signals to attract nitogen fixing bacteria.

Lack of light induces etiolation in many plants. New cells elongate and develop without chloroplasts, with rapid cell division exhibiting gravitropism, extending upward. When they grow beyond the shade area, cell differentiation changes again, to produce photosynthesising cells.

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3 years ago
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