_____ is soil with roughly equal amounts of sand, silt, and clay.

Which type of species interaction occurs when both species are harmed?

A _____ is all the species that live in some region.

Which process occurs when two species compete for a limiting resource, and one drives the other to local extinction?

Earth’s largest carbon reservoir is ______.

In most ecosystems, the primary producers use energy from ______ to build organic compounds.

_____ is the vascular tissue that conducts sugars and other organic solutes.

True or False:  Islands closer to the mainland and larger islands will have more species than those smaller and further away from mainland.

_____ is the incorporation of nitrogen from nitrogen gas into ammonia.

_____ is the maximum number of individuals of a species that an environment can sustain.