Which of the following situations is NOT a way in which a baby acquires normal microbiota?
A) The baby acquires the residential microbiota in the colon after the first meal.
B) Staphylococcus epidermidis is transferred from the hospital staff to the newborn after delivery.
C) microbes cross the placenta during pregnancy.
D) microorganisms grow in the respiratory tract after the baby's first breath.
E) microbes enter the nose and mouth when the baby is in the birth canal.
C
Bloom's Taxonomy: Comprehension
Section: Symbiotic Relationships Between Microbes and Their Hosts
Learning Outcome: 14.3
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Use the following diagram of five islands formed at around the same time near a particular mainland, as well as MacArthur and Wilson's island biogeography principles, to answer the question(s) below
Which island would likely have the greatest species diversity? A) A B) B C) C D) D E) E
Which of the following types of immunity primarily relies on interactions between antigens and antibodies?
A. Natural immunity B. Nonspecific immunity C. Acquired immunity D. Innate immunity
The punctuated equilibrium hypothesis suggests that speciation usually occurs in isolated populations at the edge of a
species’ geographical distribution.
a. True b. False
In a karyotype of duplicated chromosomes, each chromosome contains two sister chromatids.
Answer the following statement true (T) or false (F)