In which of the following situations is a plant reproducing sexually? a. a potato plant produces a tuber, and the next year, a new plant grows from the tuber. b. the pollen from one flower is transported by an insect to the ovule of another flower. c. a new shoot emerges from a strawberry plant and produces another plant. d. part of the stem segment of a cactus plant falls off and begins to form a new plant.

B. The pollen from one flower is transported by an insect to the ovule of another flower.

Explanation:

A sexual reproduction is a mode of reproduction in which fusion of gametes takes place by fertilization which leads to the production of the offsprings. Among the given options, B. The pollen from one flower is transported by an insect to the ovule of another flower. is the correct one because of the fact that this will promote cross pollination and fertilization in the flowers. This indicates the sexual mode of reproduction.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.