Which answers correctly distinguish a eukaryotic cell from a prokaryotic cell?
choose all answers that are correct.
a.
a eukaryotic cell does not have membrane-bound organelles; a prokaryotic cell contains membrane- bound organelles such as mitochondria and lysosomes.
b.
a eukaryotic cell has a nucleoid; a prokaryotic cell has a nucleus.
c.
a eukaryotic cell has an endoplasmic reticulum and a golgi apparatus; a prokaryotic cell does not.
d.
a eukaryotic cell does not have pili; a prokaryotic cell has pili.

Trilobal fibers were found on kidnapping victim. which of the following fibers would most likely to be trilobat? a. cotton b. nylon c. wool d. silk me

On a recent expedition to a remote region of northern canada, scientists uncovered skeletal remains from about 100,000 years ago. surprisingly, all the skeletal remains, which included many species from differing biological families and spanned about two thousand years, showed evidence of experiencing temperatures in excess of 1000 degrees fahrenheit (or 538 degrees celsius). which of the following, if true, best explains the apparent paradox between the cold environment and the evidence of the bones experiencing hot temperatures? (a) chemical changes that naturally occur during the process of decay in only one north canadian species produce the same evidence of the species' skeletons being exposed to hot temperatures as the expedition scientists found. (b) a little over 103,000 years ago, a large fire is known to have occurred in northern canada. (c) strong evidence exists that as early as 70,000 years ago, homo sapiens around the world relied heavily on fire to cook animals. (d) in the same expedition and in roughly the same layer of excavation, scientists found rudimentary wood cutting and hunting tools used by early humans.

The energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius