Some species of orchid plants do not perform photosynthesis. These flowering plants rely completely on soil fungi to give them nutrients. The soil fungi feed on decaying matter, and they will naturally feed on the orchid when the orchids die and decay. What type of relationship is this.

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.