What is cation exchange in plant roots?
What will be an ideal response?
Ans: This is the mechanism in which one cation, usually hydrogen, replaces a soil cation.
Biology & Microbiology
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Which sea turtle can tolerate cold temperatures?
a. Leatherback b. Kemp's ridley c. Green d. Hawksbill e. Loggerhead
Biology & Microbiology
The ability of DNA polymerase to repair its own nucleotide mismatches is called
____________________. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Adult stem cells offer an alternative to embryonic stem cells, but they
A. do not live long enough. B. have insufficient DNA. C. are difficult to identify. D. will not join easily with a vector.
Biology & Microbiology
Which of the following would be considered an essential criterion for "life"?
a. accurate replication b. heterotrophy c. metabolism d. multicellularity e. A and C
Biology & Microbiology