Invertebrates are the most commonly found fossils because they:

have hard shells which preserve well
die more often than vertebrates
are buried deeper than other organisms
secrete oxygen which petrify their bodies

It would be c) the most likely died before most of the other animals in that time that it was alive

a trait is a characteristic, such as color or size, that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent. If a gene pair contains a dominant allele, then the offspring will show this dominant trait.

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