Question

1. the oxygen that fish breathe in is dissolved in the __________. 9. fish take in oxygen through _____ gills, lungs 10. living things need oxygen for the process of ________. 11. during respiration, fish give off ________ as a waste product. oxygen, carbon dioxide 12. why must all living things have water?______________________ 13. how do most animals ingest water? ______________________ 14. why do many desert plants have roots that reach deep into the ground? ________________________

Explanation:

• For question 8: Fish obtain oxygen from the water they live in, so the oxygen is dissolved in the water.
• For question 9: Fish have gills which are the organs for taking in oxygen (not lungs as lungs are for most terrestrial animals).
• For question 10: Respiration is the process by which living things use oxygen to release energy from food.
• For question 11: During respiration (a metabolic process), carbon dioxide is a waste product (oxygen is taken in, not given off as a waste in this context).
• For question 12: Water is essential for many life - sustaining processes such as digestion (as a medium for chemical reactions), temperature regulation (e.g., sweating in some animals), and as a habitat for aquatic organisms.
• For question 13: Most animals drink water (either from sources like rivers, lakes, or by licking dew etc.).
• For question 14: In deserts, water is scarce. Deep - reaching roots allow desert plants to access groundwater that is stored deep in the soil.

Answer:

1. water
2. gills
3. respiration
4. carbon dioxide
5. Water is needed for digestion (as a medium for chemical reactions), temperature regulation, and as a habitat for some organisms.
6. By drinking.
7. To access groundwater stored deep in the soil as surface water is scarce in deserts.