It's some change in the conditions around the organism, which the organism can detect and respond to. A change in temperature, more light, or something physically poking the organism are examples.
Soil composition would be best for availability of nutrients, water, and root development higher proportion of humus; lower amounts of clay and sand
Compared to the lower soil layers, the topsoil or surface soil often includes more organic matter and air but less clay. The topsoil typically has the highest concentration of plant roots and is more fertile than the other layers.
- Nutrient management includes managing the composition of the soil. Minerals, organic material, water, and air are the fundamental elements of soil. Typically, 45% of the soil is made up of minerals. 5% organic material 20–30% water and 20–30% air are used. At best, these percentages are merely generalizations.
- Numerous nutrients are found in soil, which are obtained from dead plants and animals. The plants eat these nutrients as nourishment. So soil contributes to the growth of plants by giving them sustenance in the form of nutrients.
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A mentor is a person who plays the important role of helping another individual to become great person and achieve their potential.
<h3>Who is a mentor?</h3>
A mentor is an individual or person who plays the role of a guide and tutor to another individual in order to help this person to into a great person.
The individual mentored by a mentor is called a mentee.
Mentors are important in the lives of their mentees and to the society at large, as they help build responsible individuals in the society.
A teacher can serve as a mentor to his/her students.
A religious leader can serve as a mentor to their congregants.
Parents can serve as mentors to their children.
Therefore, a mentor is a person who plays the important role of helping another individual to become great person and achieve their potential.
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Answer:
The correct answer would be a. Fragments of DNA that have desired genes are isolated to form recombination DNA for use in a host. Genetic engineering refers to the direct manipulation or modification of the desired gene in a cell in order to produce novel or improved organism.
Explanation:
Genetic engineering is applied to techniques like DNA cloning in which the steps are: step 1: DNA cutting from the parent source; step 2: DNA cut is pasted into the matrix to be modified; step 3: matrix is introduced to the host cell and step 4, vector DNA is isolated. Answer then is B.
