The price of a 20" television changed from $450 to $400. Find the
percentage change in price.
A.
-10%
B.
-11%
C.
-13%
D.
-15%
Correct answer: -11%
Change in price: 450 - 400 = 50
To determine the percentage change, divide the change in price by the initial
price:
50 = 0.1111
450
Multiply by 100 to determine the percentage: 0.1111 × 100 = 11.11%
Because the price decreased, the change in price is negative: -11.11%, or
about -11%
,Which of the following is not a type of natural lipid?
A.
Supersaturated
B.
Polyunsaturated
C.
Saturated
D.
Unsaturated
Correct answer: Supersaturated
There are three types of natural lipids: unsaturated, polyunsaturated, and
saturated. Supersaturation is a not a naturally occurring lipid.
Unsaturated and polyunsaturated lipids have one or more double bonds
between carbon atoms of fatty acid chains; saturated lipids share no such
double bonds.
A common example of supersaturation is rock candy, which is created from a
supersaturated sugar solution.
, “‘“
Which of the following is not true of mitosis?
A.
Daughter cells are different than parent cells
B.
Daughter cells are identical to parent cells
C.
It produces daughter cells
D.
It occurs only in eukaryotic cells
Correct answer: Daughter cells are different than parent cells
Mitosis is a cell cycle during which a parent cell produces an identical
daughter cell. It has four main phases: prophase, metaphase, anaphase, and
telophase. Since the parent and daughter cells are identical, both diploids
and haploids can undergo mitosis.
Mitosis is a four-stage process that creates two identical cells from one
original cell.
Prophase is the first and longest stage of mitosis. In this stage, the
chromosomes become visible and the centrioles separate and move to
opposite poles of the cell.
percentage change in price.
A.
-10%
B.
-11%
C.
-13%
D.
-15%
Correct answer: -11%
Change in price: 450 - 400 = 50
To determine the percentage change, divide the change in price by the initial
price:
50 = 0.1111
450
Multiply by 100 to determine the percentage: 0.1111 × 100 = 11.11%
Because the price decreased, the change in price is negative: -11.11%, or
about -11%
,Which of the following is not a type of natural lipid?
A.
Supersaturated
B.
Polyunsaturated
C.
Saturated
D.
Unsaturated
Correct answer: Supersaturated
There are three types of natural lipids: unsaturated, polyunsaturated, and
saturated. Supersaturation is a not a naturally occurring lipid.
Unsaturated and polyunsaturated lipids have one or more double bonds
between carbon atoms of fatty acid chains; saturated lipids share no such
double bonds.
A common example of supersaturation is rock candy, which is created from a
supersaturated sugar solution.
, “‘“
Which of the following is not true of mitosis?
A.
Daughter cells are different than parent cells
B.
Daughter cells are identical to parent cells
C.
It produces daughter cells
D.
It occurs only in eukaryotic cells
Correct answer: Daughter cells are different than parent cells
Mitosis is a cell cycle during which a parent cell produces an identical
daughter cell. It has four main phases: prophase, metaphase, anaphase, and
telophase. Since the parent and daughter cells are identical, both diploids
and haploids can undergo mitosis.
Mitosis is a four-stage process that creates two identical cells from one
original cell.
Prophase is the first and longest stage of mitosis. In this stage, the
chromosomes become visible and the centrioles separate and move to
opposite poles of the cell.
