The upper forelimbs of humans and bats have fairly similar skeletal structures. true or false

True

Explanation:

Homologous structures are those skeletal elements or organs which look similar in plants, animals or humans so they can be connected with the common source of evolution or to common ancestry. These structures do not look exactly similar and they do not have the same function.

The upper forelimbs of humans and bats have similar skeletal structures which represent they are the homologous structure and the humans and bats have evolved from common ancestor.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).