Choose all the answers that apply. Eukaryotes .

are always multicellular
are always unicellular
may have evolved from prokaryotes
have membrane-bound organelles
have a true nucleus
are more primitive than prokaryotes

Flock x flock y flock z total pieces of food eaten (from previous page) 147 93 60 food percentage* % % % simulated number of birds in flock for 3rd generation** * divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** multiply the food percentage for each flock by the total number of birds (30).

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone