What is an organelle/area of the animal cell that organizes micro tubules?

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms

The cluster of developing cells from conception until birth is called an