After meiosis I, the number of chromosomes is ________ that of a somatic cell.

A) half
B) double
C) the same as
D) quadruple


A) half

Biology & Microbiology

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____ are dome-shaped structures composed of

layers of early cells and sediments.

a. Meteorites b. Pumice stones c. Stromatolites d. Rhyolites e. Ignimbrites

Biology & Microbiology

Most of the carbon dioxide produced by the body is transported to the lungs ____

a. in gaseous form b. in the lymph system c. as carbaminohemoglobin d. in the form of bicarbonate e. as carbonic acid

Biology & Microbiology

Which of these is not a major pathway by which ATP is consumed/used?

a. Synthesizing protein from amino acids b. Breaking down glycogen to glucose c. Transporting sodium out of a cell, from a low to high concentration d. Contraction of heart muscle

Biology & Microbiology

Since steroid receptors are located intracellularly, which of the following is true?

A) The receptor molecules are themselves lipids or glycolipids. B) The steroid/receptor complex can cross the nuclear membrane. C) The unbound steroid receptors are quickly recycled by lysosomes. D) The concentration of steroid receptors must be relatively high in most cells. E) The receptor molecules are free to move in and out of most organelles.

Biology & Microbiology