1. There are a number of differences between bi- nary fission of a bacterium and human cell di-
vision. Which of the following is not one of
them?
a. A bacterium has only one chromosome.
b. Human cells undergo mitosis and cytokine-
sis.
c. Bacteria are smaller and simpler than
human cells.
d. Bacteria have to duplicate their DNA before
dividing; human cells do not
e. Human chromosomes are larger and more
complex.

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

Aquaternary consumer species would be expected to have a smaller population than a secondary consumer species. select the best answer from the choices provided t f

During convection, less dense fluid rises and denser fluid sinks.