Solution:
The four main types of macromolecules found in living organisms, are as follows:
• Proteins.
• Carbohydrates.
• Lipids.
• Nucleic Acids.
Macromolecules are large, complex molecules. It is the product of many smaller molecular units. It is also known as Polymer
Thus the required answer is proteins, carbohydrate, lipids, and nuclear acids.
Answer:
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
Answer:
C
Explanation:
herp derp herp derp herp derp
Answer:
Nitrogen is present in the atmosphere in a molecule form about 78 percent. This nitrogen comes to the earth with the water through rainfall. Some nitrogen fix by beneficial microorganisms such as Cyanobacteria and Azotobactor which are present in the roots of higher plants. These microorganisms convert nitrogen molecule into nitrates and used by the plants. There are some other microorganisms which again convert nitrate into nitrogen molecules, called denitrifying bacteria and nitrogen molecule goes to the atmosphere again and complete the cycle.
