Biology_Chapter 1

1. Some bacteria can move toward or away from chemicals is a process called______

• A. chemotaxis
  

• B. positive response 

• C. negative response

• D. stimulus 

2. Some bacteria can move toward or away from light is a process called________

• A. phototaxis

• B. positive response

• C. negative response

• D. stimulus 

3. The ________ is the smallest and most fundamental unit of matter 

• A. atom
  

• B. molecule 

• C. DNA

• D. bacteria 

4. Organelles are small structures that exist within ________and perform specialized functions. 

• A. cells

• B. tissue

• C. organs

• D. All of the above

5. ________ are single-celled organisms that lack organelles surrounded by a membrane and do not have nuclei surrounded by nuclear membranes

• A. Prokaryotes

• C. flowering plants

• C. animals

• D. All of the above 

6. ________ have membrane-bound organelles and nuclei 

• A. eukaryotes

• B. prokaryotes  

• C. bacteria

• D. All of the above

7. Organs are collections of tissues grouped together based on a ________ 

• A. metabolism

• B. common function

• C. energy processing

• D. All of the above

8. The source of this diversity is________, the process of gradual change during which new species arise from older species. 

• A. evolution

• B. bacteria 

• C. fungi

• D. animal

9. Species that are most similar to each other are put together within a grouping known as a ________ 

• A. genus

• B. domain

• C. phylum

• D. animal 

10. A ________is a diagram showing the evolutionary relationships among biological species based on similarities and differences in genetic or physical traits or both. 

• A. phylogenetic tree

• B. cell cycle

• C. biological branches

• D. All of the above