What trend might result in delayed establishment of the gut microbiome by human infants?

A. Exposure to household pets
B. High rates of breastfeeding
C. High rates of birth by Cesarean section
D. The use of all natural baby products


Answer: C

Biology & Microbiology

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The contents of the xylem sap in plant roots are:

A. the same as the solute composition of the surrounding soil. B. always high in sugars. C. always higher in water than the surrounding soil. D. selectively maintained by endodermal cells. E. very acidic.

Biology & Microbiology

Summarize the process of DNA replication and outline the difference between how each strand replicates

What will be an ideal response?

Biology & Microbiology

An ecologist samples the abundance of various species along an environmental gradient and fails to find clusters of species. Instead, peaks of abundance of dominant species are merely randomly spaced segments along a continuum

This distribution of species supports the A) unified concept of a community. B) organismic concept of a community. C) individualistic or continuum concept of a community. D) successional concept of a community.

Biology & Microbiology

The voice box is also referred to as the:a

larynx. b. nasal cavity. c. epiglottis. d. pharynx. e. trachea

Biology & Microbiology