Correct answer: B). Food and fossil fuels
The energy can not be created nor destroyed but it can be transformed into another form. The ultimate source of energy on this planet is the sun, the sun provides sunlight where sunlight is converted into chemical energy, which is used by plants to prepare food. Then we consume food prepared by plants to get energy and perform various types of work like movement, reproduction, growth etc. In this, the chemical energy is converted into mechanical energy.
Answer: D. 2-1-3
Explanation:
Hemostasis can be define as a process which causes bleeding to stop when an injury occurs .This process is carried out through this 3 steps;
Vascular Spasm or Vasoconstriction : In this step, the body constrict the blood vessel to reduce the flow of blood to the affected area.
Formation of the Platelet Plug : In this step the body respond by activating platelets which encounters the affected area, becomes sticky and forms a plug that serves as a barrier against blood flow.
Coagulation: Involves the formation of a blood clot. It is a complex process that has Fibrin as it's end product. Fibrin is more like a glue that holds the platelets plug together.
The Fibrin clot gains strength and then dissolves when the walls of the affected blood vessels close and heals.
Hey there!
Summer and Winter are both different seasons. During the summer, light from the sun directs heats a specific area on the Earth's surface. During the Winter, the Earth faces away from the Sun which causes temperatures to drop.
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I don’t believe so, neutrons have no charge so the weight of the atom is not changed but I believe the atom would now have a negative charge
Starches are made out of monomers called glucose. To be more specific, monosaccharides are the monomer of carbohydrates, but the question is asking about what the unit is make of, which is glucose. Hope this helps! :)
