State the symbiotic relationship between the human host and the bacteria in the gut which supplies the body with vitamin k

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

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

18. which statement about cancer is true?