Answer: The means for transmission of disease-causing microorganism is provided by the direct or indirect contact.
Microorganisms can cause disease only once they are transferred to the body. The disease causing microorganisms are termed as pathogens which are transmitted by several ways such as from skin to skin, by nuclei droplets, through blood and body fluids or via air. In vector transmissions the disease is carried by the parasitic insects via animals, air borne transmission occurs when microorganisms move through air or the dust particles, droplet transmission occurs by coughing, sneezing or talking by the person who is infected while indirect transmission occurs by physical contact or by touching contaminated objects.
Answer in 1 point
Zoo is place where animals are maintained for public display.
Sanctuaries are protected regions where wild animals live in natural habitats.
zoo:. Animals are brought from different parts of the country. sanctuary:It contains animals native to that area.
zoo: It is an artificial habitat. sanctuary: It is a natural habitat.
Answer:
Your three blood cell types have different sizes, shapes, and functions. Yet they all started out alike. Within each cell of your body there are chromosomes which give the instructions for cell processes. These instructions include the differentiation of your blood cells
Explanation:
In the chromosomes the DNA is packed, from its sequence and from other control mechanisms the genetic expression is regulated and instructions are given to generate one or another type of cell. This happens because there is a differential expression of the different genes according to the cell type.
charge.
Positive
Negative