What is the similarity between the flora found in a female at the menopause stage and a female at the pre-puberty stage? How different is it from a female between the stages of puberty and menopause?
What will be an ideal response?
Answer: The flora in both cases lack Lactobacillus acidophilus because the female genitals do not produce glycogen at these stages, therefore there is no need to convert glycogen to lactic acid to keep the pH of the genitals slightly acidic. The pH is thus higher than that of females between the stages of puberty and menopause.
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The Cerulean warbler is a songbird that breeds in the eastern and middle US and winters in Central America. Its numbers have been rapidly declining over the past 50 years. You are interested in the reason(s) for this rapid decline and set about to make observations and gather data. The graph above shows data you collected on the abundance of Brown cowbirds (nest parasites) and Cerulean warblers at various locations. Based on a visual inspection of the graph, what can you conclude?
A. Brown cowbirds are responsible for the decline of the Cerulean warbler.
B. The abundance of Brown cowbirds shows a negative relationship with Cerulean warbler abundance.
C. Brown cowbird abundance is significantly correlated with Cerulean warbler abundance.
D. The abundance of Brown cowbirds shows a positive relationship with Cerulean warbler abundance.
E. Brown cowbirds do not appear to affect Cerulean warblers.
Red algae contain ________, which absorb(s) blue-green and green light, allowing the algae to live in deeper water
a. phycobilins b. carotenoids c. chlorophyll a d. chlorophyll b
Plants that show a pattern of stomatal opening and closing that is the reverse of C3 plants are called
A. CAM. B. C4. C. temperate. D. Calvin cycle.
What is the function of the sepal of a flowering plant?
a. To absorb sunlight for photosynthesis b. To protect the flower bud c. To attract pollinators d. To absorb nutrients e. To bear ovules