Answer:
<em>The correct options are B and C</em>
Explanation:
Option A is false because bacteria fix nitrogen by converting it into ammonia. The ammonia is used by the plants for different functions like development etc.
Option B is correct because plants can take up both ammonium ions and nitrate ions from the soil. They use these ions to make amino acids which are required by the plant for different activities.
Option C is correct because nitrifying bacteria are the bacteria which convert ammonia into nitrites and then nitrates in a process which is termed as nitrification.
Option D is false because herbivores eat plants to make amino acids and proteins.
Answer: chloroplast
Explanation: animal cells do not need to produce chlorophyll but plants cells do because the chlorophyll absorbs sunlight for photosynthesis and it is what makes the plant green.
Answer:
B
Explanation:
Cancerous cells grow out of control because they do not receive the signals to stop grow. This causes tumors to form, and continue growing until treated.
The first space is 20 and the second space is 40.078.