1) To lower the activation energy needed to start a reaction - this is done through enzymes
2) Energy - this is done through storing sugar
3) Transportation - this is done through hemoglobin
Positive feedback occurs during ovulation.
Answer:
Roots help a plant grow by absorbing the water and nutrients from the soil
Explanation:
Answer - D. Websites Containing false or misleading information.
Reasoning - For example if you go onto a website you want to be able and self analyze for yourself if the correct information and not a spoof of false information given.
They can exchange both matter and energy, exchange energy but not matter, Isolated systems can exchange neither energy nor matter.
In a closed system only energy can be exchanged; matter stays inside.
In a open system matter and energy can be exchanged