If an individual has an extra chromosome in every one of its cells, what mutation must have occurred?

What types of energy transfers and energy transportations are involved in the domino chain reaction?

Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?

Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .