Blood is carried towards the heart by __________?

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There are mainly __________ types of tRNA?

A. 170 B. 20 C. 25 D. 15...

Bacteriopahage that infect E. coli are called_____________?

A. M type B. N type C. T type D. S type...

Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is___________?

A. Creatin B. Gastrin C. Secretin D. Pepsin...

In chlorophytes the main energy stores are__________?

A. Cellulose B. Starch C. Glycogen D. All of these...

Cyanobacteria reproduce by____________?

A. Binary fission B. Mitosis C. Meiosis D. Conjugation...