Mucous secretions in the respiratory tract inhibit microbial infections. these secretions are produced by which of the following tissue types found in the lungs?

The correct answer is - epithelial tissue.

Explanation:

Mucous secretions are are essential in the immune response as it inhibits the microbial infections such as the bacteria or trap the dust particles that are present in respiratory tract.

Respiratory tract have epithelial tissue that contains cilliated cells or occasionally goblet cells. These cells are secrete mucus that moistens the epithelial cell surface and traps or adhere to the particles or microbes.

Thus, the correct answer is - epithelial tissue.

you are certainly talking about this picture:

a: is the label of the white square, it is showing the  replication fork, formed by helicase (d) ==> so it is the site of dna separation and replication 

b: is a new dna brand that is following directly the replication fork, so it is continuous ==> built continuously from 5' to 3

c: dna polymerase cannot replicate dna on its own, it needs the of their proteins, and one of them plays the role of a clamp which fixes  the dna with the dna template and increases  the processivity of the enzyme. ==>   stops polymerase from falling off the  template.

d: is the enzyme responsible for forming the replication fork (helicase) ==> unwinds and separates dna into two strands

e: is the delayed strand, it is built  in the opposite sense of the helicase, so dna will be built in fragments ==> built  fragments from 5' to 3 joins

and finally f: is the enzyme that builds  the new dna strand (dna polymerase) ==>   adds nucleotides to make a new dna helix.

credit: gradman555p98x9p

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a. suckling by young

b. hypothalamus

c. dopamine

d. trh

e. anterior pituitary

f. mammary glands

g. milk production