Explanation:
SARS, Ebola, swine flu, rabies
Answer:
c. In mines or confined places, where oxygen levels have been depleted, ventilation may occur.
Explanation:
Environments classified as “confined space” are hazardous for several reasons, but one of the main ones is the low oxygen concentration. Normally atmospheric air contains a 21% concentration of oxygen that is necessary for the maintenance of human life. Some confined spaces have this concentration of less than 21% oxygen, which can be very harmful to human life and lead to death.
Low oxygen concentration can be masked by ventilation in confined places. This is because in confined places oxygen levels may be low, but ventilation may continue despite inadequate oxygenation.
As a result of mitosis, each of your body cells is
c. is genetically identical to all others
Explanation:
During cellular division, the chromosomes, that have already duplicated, condense and fasten to spindle fibers that pull one copy of every body to opposite sides of the cell. The result's 2 genetically identical daughter nuclei. the remainder of the cell might then still divide by organic process to supply 2 daughter cells.
Answer:
Respiratory bronchiole
Explanation:
The respiratory bronchioles represent the narrowest airways within the lung, being continuations of terminal bronchioles that have approx. 0.5 mm in size. The epithelium of the respiratory bronchiole is composed of cuboidal ciliated cells and a small number of non-ciliated (secretory) Clara cells. The respiratory bronchioles lead into alveolar ducts composed of smooth muscle and connective tissue (i.e., elastin and collagen), connecting the respiratory bronchioles to the alveolar sacs.
Answer:
G and K
Explanation:
Crossing-over is a genetic phenomenon that occurs in meiosis, specifically, Prophase I. It is when chromosomal segment (genes) are exchanged between non-sister chromatids of homologous chromosomes. Crossing-over occurs only to genes that are UNLINKED i.e. genes located on different chromosomes or far apart on the same chromosome.
This unlinked genes are said to have the highest RECOMBINATION FREQUENCY. Crossing-over allows genes on the same chromosome but far apart from each other, assort independently, which allows alleles to be recombined on the same chromosome. This phenomenon does not occur to genes that are close on the same chromosome as they will be inherited together as a unit.
In this case, G and K are the farthest apart, hence, they will have the highest RECOMBINATION FREQUENCY i.e. the likelihood for homologous crossing-over to take place during meiosis.