The process of meiosis produces ____________________
a. four cells that have unique allele combinations
b. two cells that are genetically identical
c. four cells with an unequal number of chromosomes
d. two cells that then undergo fertilization
A
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Why does water serve as an excellent solvent?
a. Because water is polar b. Because water is cohesive c. Because water allows surface tension d. Because water stabilizes temperatures
The liquid portion of the blood that consists of about 55% of the total volume of blood is referred to as ________
A) stem cells B) leukocytes C) plasma D) platelets
Imagine that you have isolated a mysterious liquid from a sample of food. You add the liquid to a beaker of water and shake vigorously. After a few minutes, the water and the other liquid separate into two layers
To which class of biological molecules does the unknown liquid most likely belong? A) Enzymes B) Nucleic acids C) Carbohydrates D) Proteins E) Lipids
The receptors in the respiratory center are most sensitive to a small
A) increase in blood carbon dioxide levels. B) increase in blood oxygen levels. C) decrease in blood nitrogen levels. D) decrease in blood oxygen levels. E) increase in blood pH.