The major sign of pertussis occurs during which of the following phases of the disease?
A) Paroxysmal phase
B) Incubation
C) Catarrhal phase
D) Convalescent phase
Ans: A) Paroxysmal phase
You might also like to view...
GnRH-producing cells in the brains of male cichlids are larger in territorial individuals
a. True b. False
All of the following characteristics of tRNA molecules are true except::
a. They are recognized by ribosomes. b. They have an anticodon. c. They have an attachment site for an amino acid. d. They are recognized by a specific aminoacyl-tRNA synthetase. e. They are considerably larger than rRNA molecules.
Protons are pumped out of the cell, which creates a proton gradient and a charge gradient. This dual energy source is Used by symport to concentrate nutrient inside the cell.
a. true b. false
Choose the scientific evidence that supports evolutionary theory. Check all that apply.A) the fossil recordB) homologous structuresC) the molecular recordD) intelligent designE) vestigial structures
What will be an ideal response?