Answer:
A. Volcanic ash falls to the ground and adds minerals to the soil,
making it rich for plant growth.
There are many answers to this question
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. these are the steps.
Answer:
Innate immunity is a nonspecific defense mechanisms that play its role as soon as an antigen appear in the body (it is relatively rapid but nonspecific and because of that it is not always effective)
Explanation:
The barries of innate immunity are:
Skin: At Epidermal surface, its protective aspect are keratinized cells that lives on the surface, known as Langerhans cells.
Skin sweat or secretions: Their specific defense is sweat glands and sebaceous glands, and their protective aspect is low ph and washing action.
Mucosal surfaces: they are at the mucosal epithelium, and their protect aspects are nonkeratinized epithelial cells.
Oral cavity: They defend salivary glands through Lysozyme
The organisms that obtain energy
by eating nutrients that make up other organisms are called Hetertrophs.
The correct answer between all the choices given is the second choice or
letter B. I am hoping that this answer has satisfied your query about and it
will be able to help you, and if you’d like, feel free to ask another question.
