Which of the following is a class of molecules that encompasses all of the other molecules listed?
a. triglycerides d. steroids
b. fatty acids e. lipids
c. waxes f. phospholipids
E
You might also like to view...
Gene expression in developing organisms is regulated on several different levels. In many developing animals, regulation of gene expression is influenced by the action of Hox genes. Which of the following regulatory elements is produced by many Hox genes?
A) transcriptional factors B) cell-surface molecules for cell-cell interactions C) signals from maternal cytoplasm, such as bicoid D) mRNA processing factors
Unreduced gametes are those that contain additional chromosome numbers
a. True b. False
Which secreted molecule is LEAST likely to effect a significant change in blood pressure?
A. antidiuretic hormone B. aldosterone C. nitric oxide D. high-density lipoprotein E. atrial natriuretic hormone
The net weight of all of the organisms living in an ecosystem is its
A. productivity. B. biomass. C. vital force. D. photosynthesis minus metabolism. E. combined output of metabolism and photosynthesis.