On a field trip with your class to mountain lakes in Vermont, you come across a beautiful clear lake that is deep, and you can see the pebbles at its bottom
Why does your classmate hypothesize that this lake has been subjected to acidic deposition?
The lake is clear because all plants, algae, and aquatic organisms are dead.
Biology & Microbiology
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The positively charged ion, potassium, and the
negatively charged ion, fluoride, will form what kind of bond?
a. ionic b. polar covalent c. nonpolar covalent d. hydrogen e. isotonic
Biology & Microbiology
The pulmonary veins deliver blood to the ____
a. right atrium b. right ventricle c. left atrium d. left ventricle e. lungs
Biology & Microbiology
Which is a part of the body's nonspecific defense mechanism?
A) skin B) T cells C) B cells D) antibodies
Biology & Microbiology
Restriction enzymes have the ability to cut DNA at specific nucleotide sequences
Indicate whether the statement is true or false
Biology & Microbiology