Who was the first emperor of united China? A. Shang Yang
B. Han Feizi
C. Confucius
D. Shi Huangdi

Cells destroy body cells infected by a virus or bacteria. killer t t memory t none of the above

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different

Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.