Final answer:
The primary producers in a coniferous forest are coniferous trees like pines, spruce, and fir.
Step-by-step explanation:
The primary producers in a coniferous forest are coniferous trees like pines, spruce, and fir. These trees are cold-tolerant and retain their needle-shaped leaves year-round. They can photosynthesize earlier in the spring than deciduous trees, giving them a competitive advantage in the boreal forest. Coniferous trees also have nitrogen-rich needles, which help them thrive in the acidic soils of the boreal forest.