Which of the following animals is invertebratea)goldfishb)horsec)turt le d)grasshopper

it is grasshopper because they donot have backbones

A vertebrate is an animal with a backbone.

The prefix (in) means opposite.

Invertebrate means an animal without a backbone.

The animal without a backbone here is the grasshopper.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

the answer is a) a shiprock was formed by igneous process