Question

drag the missing word into place
forests and deserts are two examples of . the plants and
animals in each one have adapted to their particular conditions.
grasslands
savannas
biomes

Explanation:

Forests and deserts are types of biomes, which are large ecological areas with distinct plant and animal adaptations. Grasslands and savannas are also biomes but are not the category that includes forests and deserts. So the correct word is "biomes".

Answer:

biomes