Which of the following types of greenhouse protection is best suited to providing a controlled environment for extensive field crops such as strawberries or flowers? polytunnel

cold frame

alpine

Quonset-style

What are the steps of how energy is transformed in plant cells?

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.