Separation of sister chromatids (D)
1. <span>Nuclear power does not produce air pollution as other energy sources do.
2. </span><span>Ocean currents bring nutrient-rich water into coastal regions.</span>
They have increased need to carbohydrates, protein, water and iron.
Carbohydrates is the primary source for energy and active people apparently need more energy for their daily activities.
Protein helps build muscles, even though they only need a small amount more of protein than normal people, they still require protein for muscle buildings.
Water has to be needed as they may excrete more sweat by active activities in the day time. Water can also help remove waster material from body.
Iron helps the production of hemoglobin, which is in the red blood cells that help transport oxygen. As they exercise more, they need more oxygen supply for respiration, therefore there is a need for iron supply.
Answer:
C.a measure of the amount of heat a plant must experience before reaching maturity
Answer:
The correct answer is "fruit; seed dispersal".
Explanation:
Fruits are plant adaptions that allow them to disperse their seeds by offering food to animals. In this case the plants have adapted to attach their seeds to the fur of animals instead of offering food. Therefore, the burrs are a type of fruit that is not eaten by animals, but the plants achieve its goal that is seed dispersal.