What 2 factors can cause a stratified water column to become unstable and to mix?
What will be an ideal response?
Anything that increases the density of surface water above that of deeper water will lead to an unstable water column. Cooling or freezing of surface water or the evaporation of surface water can all lead to an increase in the density of surface water.
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In meiosis, sister chromatids separate and move to opposite poles of the spindle during ____________________
Fill in the blank(s) with correct word
Due to ________, the 25,000 genes of the human genome seem to encode as many as 120,000 different expressed mRNAs.
A. independent assortment B. alternative splicing C. mutations D. recombination
ATP carries stored potential energy and transfers it via the formation of:
a) permanent covalent bonds b) phosphate bonds c) hydrogen bonds d) ionic bonds
Canning works to preserve foods through
A) creation of an anaerobic environment. B) creation of an anaerobic environment and exposure to high heat. C) exposure to high heat. D) mutation of bacterial DNA. E) increasing pH.