Eukaryotes have a nucleus, and prokaryotes have a nucleoid. true or false

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance