Bio Formative

1. What is excretion?

• Removal from organisms of the waste products of metabolism, toxic materials, and substances in excess of requirements.

2. What is the most accurate means of classification?

• Sequences of bases in DNA and of amino acids in proteins.

3. What do classification systems aim to reflect?

• Classification systems aim to reflect evolutionary relationships.

4. Traditional Classification is based on which 2 studies?

• Morphology and anatomy.

5. What is required for plant nutrition?

• Light, carbon dioxide, water, and ions.

6. What do animals need to take in for nutrition?

• Organic compounds and ions, and usually need water.

7. What is the life process that makes more of the same kind of organism?

• Reproduction.

8. Which characteristic of living things is defined as the ability to detect or sense stimuli in the internal and external environment and to make appropriate responses?

• Sensitivity.

9. Which life process is defined as taking in of materials for energy, growth and development?

• Nutrition.

10. In its most simple form, classification is based on what?

• Shared featured characteristics.

11. What is the definition of growth?

• A permanent increase in size and dry mass by an increase in cell number or cell size or both.

12. What is an action by an organism causing a change of position or place?

• Movement.

13. List the features in the cells of all living organisms?

• Cytoplasm, cell membrane, DNA as genetic material, ribosomes for protein synthesis, and enzymes involved in respiration.

14. Describe the 7 characteristics of living organisms?

• Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition
  (MRS GREN — a helpful mnemonic!)

15. Which characteristic of living things is defined as chemical reactions in cells that break down nutrient molecules and release energy for metabolism?

• Respiration.