The physical basis of life is/are ____________

a. carbon b. water
c. carbon and water d. carbon, water, and silicon


c

Biology & Microbiology

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Which of the following is true of gap junctions?

A. They are holes in the cell wall through which the plasma membrane and endoplasmic reticulum of adjacent cells are connected. B. They are channels in the plasma membrane of plant cells made of transmembrane proteins that allow ions and small molecules to pass between adjacent cells. C. They are channels in the plasma membrane of animal cells made of transmembrane proteins that allow ions and small molecules to pass between adjacent cells. D. They provide points of structural support between adjacent plant cells. E. They provide points of structural support between adjacent animal cells.

Biology & Microbiology

When plants are produced by cloning, which process is most directly involved?

a. mitotic cell division b. binary fission c. meiotic cell division d. gamete production e. budding

Biology & Microbiology

Which term can be applied to all of the vertebrates except for the jawless fish?

A. Endothermic B. Amniotes C. Tetrapods D. Gnathostomes

Biology & Microbiology

Blood vessels called ___ carry blood back to the heart.

What will be an ideal response?

Biology & Microbiology