Question

Any pH below will kill all amphibians embryos?​

Answer 1

Answer:

However, amphibians exhibit much intraspecific variation in acid tolerance, and some species are sensitive to even low levels of acidity. Furthermore, nonlethal effects, including depression of growth rates and increases in developmental abnormalities, can occur at higher pH.

Answer 2

Answer:

pH3.90-7.06

Explanation:

embryos were intolerant of low pH and were absent from the most acidic ponds. Wood frog (Rana sylvatica) and pine barrens treefrog (Hyla andersoni) embryos were tolerant and found in ponds with the lowest pH's.

could not hatch below pH 4.50, whereas R. sylvatica could hatch even at pH 4.25. Similarly, B. woodhousei could not hatch below pH 4.10, but H. andersoni could hatch at pH 3.70. Embryos of all four species were transplanted into several ponds ranging in pH from 3.90-7.06 to test whether embryonic mortality caused by low pH could be responsible for the absence of the two least tolerant species from acidic ponds.