Answer:
Option C , I and II only
Explanation:
The study conducted is done only for people or organisations that either started a compost pile or who want to start a compost pile. Thus result III is not at all a valid question for the study conducted.
However, there can be question related to the result of experiments clarifying the quantity of additives used in the experiment for example why only 10 Kg of dry water, why not to add more than 1 L of water , why only water is to be added why not some other solvent etc. Thus question I is a valid question.
Also , question II is valid as it asks about expanding the scope of experiment from one type of organic material to all other type of organic matter in the compost.
There fore both question I and II are valid question and thus option C , is correct.
Most of the functions of your intestines are a result of the signals sent by your autonomic nervous system (ANS). It is a fundamental constituent of the peripheral nervous system.
<h3>What is the autonomic nervous system?</h3>
The autonomic nervous system (ANS) refers to a fundamental part of the peripheral nervous system capable of regulating diverse physiological functions.
This system (autonomic nervous system) is responsible for regulating involuntary processes such as blood pressure, heart-pumping, respiration rate, digestion, etc.
The parts of the autonomic nervous system include the sympathetic nervous system and parasympathetic nervous system.
Learn more about the autonomic nervous system here:
brainly.com/question/4143211
Answer:
part 1- polymers part 2- monomers
Answer:
The correct answer is: Immunosenescence.
Explanation:
- Immunosenescence can be defined as a biological age-related phenomenon due to which the cells of the immune system are unable to function efficiently with increase in age.
- As a result of this the aged individuals becomes susceptible to various infections and diseases.
- This happens because of the following reasons:
- The immune cells are formed from the progenitor cells called the Hematopoetic Stem Cells (HSCs) which are abundantly found in the bone marrow. These cells have the capacity of self-renewal and also differentiation into various types of immune cells. Due to aging, these cells accumulate large number of Reactive Oxygen Species (ROS) that that causes oxidative damage to the DNA. Also, with age the telomere (the repititive DNA sequence located at the chromosome terminal that protects the end of the chromosome from undergoing recombination or fusion with other chromosomes) length shortens resulting in the generation of damage in DNA. All these reduces the self renewal and differentiation capacity of these cells.
- Other cells of the immune system like, the white blood cells, anti-body producing B-cells, cytotoxicity inducing T-cells, natural killer cells also accumulate similar DNA degrading components. This reduces their life time and also the efficiency of their activity.
