Answer:The nitrogen present in the soil is not directly used by the bacteria. It can be used only when the nitrogen is converted into usable form. These bacteria convert atmospheric nitrogen into ammonia, then nitrite which is then converted into nitrate. This nitrate is used by the roots of the plants like soybeans and peas. This is the role of bacteria present in the roots of the plant to convert atmospheric nitrogen into usable form that can be used by plants.
Explanation:
Answer:
Overproduction, Variation, Selection, and <em>Competition</em>
Explanation:
The answer is A.
When the body temperature returns to normal,the respiratory system sends a message to the skeletal system to stop shivering.
Light-independent reactions (dark reactions). Light reactions need light to produce organic energy molecules. Dark reactions make use of these organic energy molecules.
Answer:
1 True 2 false 3 false 4 true 5 true
Explanation:
1 The Lac I gene makes repressor protein True
2 The structural genes encoded by lac operon are involved in lactose synthesis false
3 The CAP protein is an activator protein that binds to the operator false
4 The product of Lac I is an allosteric protein that can undergo conformational change when allolactose binds to it True
5 CAP binding causes DNA to bend facilitating RNA polymerase binding True
