Answer: Biotic means a living factor in the environment. The opposite would be abiotic, which is a non-living factor like light, pH, wind, etc.
Explanation:
The metric system is a system of weights and measures that was first applied in 1795 in France. Experts everywhere the world use it as the international standard to evidently communicate data. The significance are the following:
• SIMPLICITY which is the metric system is much simple than the english system because it uses a standard conversion influence for all units.
• FAMILIARITY which is almost every nation excluding the united states has accepted the metric system as its official system of weight and measures.
• UNIFORMITY which is scientists use the metric system so all experiments are conducted using the same weights and measures.
• HISTORY which is the general session on weights and measures formally chosen six metric units to be used as international standards in 1954 and in 1960 and the meter was formally distinct established on the wavelength of light from krypton atoms.
• TYPES which is the metric system use meters for space, grams for mass, liters for volume and candelas for light.
Answer: The structural and functional characteristics of different types of cells are determined by the nature of the proteins present. Cells of various types have different functions because cell structure and function are closely related.
Explanation:
<span>The head of the sperm contains the necessary enzymes to help it penetrate the oocyte. The sperm cell is anatomically structured to have four parts which are the head, neck, midpiece, and a tail. Inside the head of the sperm are densely coiled chromatin fibers that contain the nucleus for helping the sperm penetrate the female fertilized egg necessary for reproduction.</span>
The final electron acceptor is indeed oxygen but let me explain it better: This process occur during cell metabolism. The thing is that the potential of NADH and FADH2 is converted into more ATP, which is the <span>Adenosine triphosphate, through an electron chain that contains oxygen and that is why is called the terminal electron acceptor. </span>
