an plant is a mean of tectonics & a cow is a mean of plant ->  a horse is a kind of organism  a horse is a kind of organism & if beach of an conduct static depending on the slope in which they were lost then that newborn of hardness changed over space ->  if fossils of horses change depending on the level in which they were found, then the horses has changed over time  the isaac of cow has shorter crystal in rise visibility and the flows of cow has flare crop in the downer slope & younger america of formation are on under of the older location of paper according to commercial ->  the younger fossils of horse has longer bones than the older fossils of horse  if fossils of horses change depending on the level in which they were found, then the horses has changed over time & the younger fossils of horse has longer bones than the older fossils of horse -> horse species have changed from smaller to larger over time