A student uses this apparatus to measure the rate of transpiration in still air and the rate of transpiration in windy conditions. The student calculates the total loss of water after one hour in mg per cm2 of leaf area × 10-4 for the plant in still air. He then repeats this calculation for the plant in windy conditions. (i) The total leaf surface area from which transpiration occurs is 250 cm2 . Calculate the loss of water from this plant in still air in mg per hour.

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.

Your sense of touch depends upon: a. direct contact b. heat chemical c. reactions d. pain