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

Biology & Microbiology

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The amount of blood the heart pumps into the aorta each minute is known as ________ output

Fill in the blank(s) with correct word

Biology & Microbiology

You are working with a mixed population of cells that includes some cells expressing CD95 on their surfaces. Design an experimental protocol using Fluorescence-Activated Cell Sorting (FACS)

to determine how many CD95-expressing cells are dividing at any given time. What will be an ideal response?

Biology & Microbiology

What heat free process penetrates objects well and produces mutations that damage and kill cells

What will be an ideal response?

Biology & Microbiology

Which of the following represents a form of intrasexual selection?

a. mate guarding by grasshopper males b. the increase of sperm density in bluegill sneaker morphs c. moth females using stored sperm in positive correlation to the amount of nuptial gift received d. "short-horned" (= female looking) forked fungus beetle males mating with females without engaging in fights with "long-horned" dominant males e. A, B, and D

Biology & Microbiology