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Which of the following processes is required for sexual reproduction?
7
It will weaken or die.
active transport
meiosis
to enable the cell to move
diffusion
a toxin
Water will move out of the cell.
A cell is placed in a new solution. There is an 8% concentration of substances inside the cell, and a 12% concentration of substances outside the cell. The cell membrane is not permeable to these substances. Which of these best describes what will
7
It will weaken or die.
active transport
meiosis
to enable the cell to move
diffusion
a toxin
Water will move out of the cell.
Sodium ions are found at a lower concentration inside a cell than outside a cell. These ions move from areas of low concentration to areas of high concentration. This process is called
7
It will weaken or die.
active transport
meiosis
to enable the cell to move
diffusion
a toxin
Water will move out of the cell.
The cell membrane of red blood cells contain channels through which glucose molecules can pass without the expense of energy. The glucose moves from an area of high concentration to an area of low concentration. This is an example of
7
It will weaken or die.
active transport
meiosis
to enable the cell to move
diffusion
a toxin
Water will move out of the cell.
A single-celled organism is exposed to a toxin. What will most likely happen to the organism?
7
It will weaken or die.
active transport
meiosis
to enable the cell to move
diffusion
a toxin
Water will move out of the cell.
Clostridium tenani is a type of bacteria that produces a poisonous substance that causes tetanus in the human body. The most common form of the condition is characterized by a locked jaw, stiff neck, and stiff muscles. The poisonous substance is ca
7
It will weaken or die.
active transport
meiosis
to enable the cell to move
diffusion
a toxin
Water will move out of the cell.
The pH of blood is relatively neutral. It is neither an acid nor a base. You would expect the pH of blood to be close to
7
It will weaken or die.
active transport
meiosis
to enable the cell to move
diffusion
a toxin
Water will move out of the cell.
What is the role of a cell's flagellum?
7
It will weaken or die.
active transport
meiosis
to enable the cell to move
diffusion
a toxin
Water will move out of the cell.
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