Which of the following is not a description of the cell membrane?

A. It is composed of phospholipid molecules.
B. It is a mosaic structure.
C. It is a rigid structure.
D. It is a bilayered structure.
E. It is a fluid structure.


C. It is a rigid structure.

Biology & Microbiology

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During sexual reproduction, each parent contributes one set of chromosomes. Members of a pair of chromosomes (one from each parent) are called __________

A. karyotypes B. sister chromatids C. homologs D. sex chromosomes

Biology & Microbiology

At which point in this cycle is ATP produced?

1.A 2.B 3.C 4.D

Biology & Microbiology

The commercial cloning of pets and livestock is

already being performed. The example in the introduction of your book was of a cloned a. cat. b. bull. c. pig. d. elk. e. dog.

Biology & Microbiology

The shell of a fertilized animal egg has what type of analog in angiosperms?

A) endosperm B) carpels C) fruit D) seed coat

Biology & Microbiology