In terms of the hierarchical scales of biological organization, __1__ are a very large scale, __2__ are a very small scale, and __3__ is between them.

ecosystem, and biosphere

organelle and cells

tissues, organs, organ systems, organisms, populations, communities,

Explanation:

In terms of the hierarchical scales of biological organization, ecosystem, and biosphere are a very large scale,  organelle and cells are a very small scale, and tissues, organs, organ systems, organisms, populations and communities, are present between them. The biological levels of organization of living things arranged from the simplest to most complex are organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

d

explanation:

the higher the instrument the better