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1. Which is the CORRECT sequence – from smallest to biggest – of the levels of biological organization in an organism?A. cell – tissue – organ – organ system – organism

B.cell – organ – organ system – tissue – organism

C. cell – organ system – organ – tissue – organism

D. cell – tissue – organism – organ – organ system



2. Which of the following is an organ of the circulatory system? 

A. heart
B. kidney
C. roots
D. stems


3. Which of the following is TRUE? 

A. Groups of organs working together are called cells.

B. Groups of cells working together are called tissues

C. Groups of organs working together are called organisms.

D. Groups of tissues, working together are called organ systems ​


Sagot :

Answer:

1. A. cell, tissue, organ, organ system, organism

2. A. Heart

3. B. Groups of cells working together are called tissues