Most biological molecules are made of stable, covalently
bound molecules rather than ionic compounds because:
A) Water is slow to evaporate.
B) Water is adhesive and can bind to charged molecules.
C) The high surface tension of water.
D) Ice is less dense than liquid water.
E) Water is a universal solvent.
Answers: 2
Biology, 22.06.2019 08:30
What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna
Answers: 2
Biology, 22.06.2019 13:00
Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?
Answers: 1
Biology, 22.06.2019 13:10
The importance of the mind as a part of the body is an example of:
Answers: 1
Most biological molecules are made of stable, covalently
bound molecules rather than ionic compoun...
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