The main difference between macronutrients and micronutrients is that human body requires macronutrients in larger quantities whereas micronutrients are needed in smaller quantities. The major macronutrients are carbohydrate, protein and fat which contribute to the bulk of our food.
Meanwhile, micronutrients such as vitamins, minerals and phytochemicals are essential for maintaining a good health.
Macronutrients are chemical substances required for growth and other human body functions.
Micronutrients are chemical substances required for various functions of the body, growth, and disease prevention. Furthermore, they are essential for overall health of human beings.
The differences between macronutrients and micronutrients :
Macronutrients: “macro” indicates large and macronutrients are nutrients required in large amounts.
Micronutrients: “micro” indicates small and micronutrients are nutrients required in small amounts.
I think it would be A. Abuse is never the victim's fault.
Methods of preserving food :
- Using salt
- Drying
- Using chemical preservatives
- Keeping in cold conditions
Axons are long nerve processes which carry nerve impulses from the Soma to other neurons, they vary in length but can become almost as long as half of the human body.
The soma (body) of the neuron contains the nucleus which acts as the cell's control centre, these contain many small neurofibrils which project from the nucleus into the dendrites.
Dendrites are short, thick processes which branch out of the soma in a tree like manor. They conduct nerve impulses to the soma.
The three categories of neurons:
Afferent (Sensory) Neurons have the dendrites connected to receptors such as the eyes, ears etc. These receptors change the information they receive into electrical impulses that are transmitted to other neurons. In sensory neurons the axons are connected to other neurons.
Efferent (Motor) Neurons have the dendrites connected to other neurons, the axons are connected to effectors. Effectors are either glands or a muscle cell that is the receiving end of the nerve impulse. The nerve, when excited will cause the effector to react (move, contract, or secrete etc).
Internuncial Neurons have both the dendrites and the axons are connected to other neurons. They are sometimes referred to as connector neurons.
Internuncial neurons are found throughout the body, but especially in the spinal cord and brain.
Properties and characteristics of Neurons:
Normally the electrical impulses (messages) travel through a neuron in only one direction.
The axon may be surrounded by a 'coat' of lipids (fats) and proteins known as the myelin sheath which acts as an insulator.
Neurons are specialist cells that have lost the ability to reproduce themselves. Once the soma of a neuron has died the entire neuron dies, and can never be replaced.
Repair of damaged neurons only occurs in myelinated neurons.
white matter are coloured by myelin, consisting of many neurons supported by neuroglia.
grey matter is soma and dendrites or bundles of unmyelinated axons and neuralgia.
Answer:
Thee answer to your question is D
