What do pollen, dust mites, certain foods and drugs, insect venom, fungal spores, and some ingredients
in cosmetics have in common?
a. they are all made of protein
b. they all contain lipids
c. they often act as allergens
d. they often contain dangerous bacteria
e. they often elicit antibody production
C
You might also like to view...
Injuries that range from slight (caused by overstretching) to serious (caused by tearing) are _____
sprains osteoarthritis scoliosis bursitis
Eukaryotic ribosomes function as
a. a single unit. b. two-part units. c. three-part units. d. four-part units. e. a multidivisional unit.
Which of the following is (are) true concerning
antigen-presenting cells? a. They may be macrophages. b. They may be B cells. c. They may be dendritic cells. d. They have antigen bound to their MHC markers. e. All of these are true.
Which of the following is/are true of most of the extreme thermophilic Archaea in the phylum of Crenarchaeota?
A. They are sulfur dependent, they are acidophiles, and their cell walls contain lipoprotein and carbohydrate B. Their cell walls contain lipoprotein and carbohydrate C. Unlike most other Archaea, their membrane lipids are similar to those of the bacteria D. They are sulfur dependent E. They are acidophiles