During the first day or so after birth, the breasts produce a watery milk called
A) prostaglandins.
B) amniotic fluid.
C) lactose.
D) colostrum.
E) allantois.
D
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Evaluate the similarities and differences between marine and freshwater ecosystems of the biosphere
What will be an ideal response?
Many tadpoles excrete ____, whereas adult frogs excrete ____
A. ammonia; urea B. urea; ammonia C. uric acid; ammonia D. uric acid; urea E. urea; uric acid
Using antigen-antibody reactions to identify bacteria is an example of
the genetic approach to bacterial identification. the immunological approach to bacterial identification. the phenotypic approach to bacterial identification. the physiological approach to bacterial identification. the epidemiological approach to bacterial identification.
Recent years have seen an increase in products with antimicrobial properties. The most common human pathogens are microbes-yet some people argue that these products may be counterproductive and actually harm human health. What correct statements would support this position? Choose all that apply.
A. Normal human skin lacks bacteria-their presence indicates an infection. B. Normal human skin has hundreds of bacterial genera, many of which provide beneficial functions. C. The presence of a harmful microbe is unaffected by the presence of other microbes. D. The proportion of specific bacteria types in the gut microbiome has been associated with growth rates in children. E. In humans, only the gut carries a significant, beneficial microbiome population. F. Antimicrobial chemicals may harm beneficial bacteria as well as pathogens.