B-lymphocytes are categorized as part of the adaptive branch of the immune system for all of the following reason but one. which of the following is not one of the reasons b-lymphocytes are considered part of the adaptive immunity? a) their receptors will bind to only one antigen. b) they are a first line of defense that can begin killing pathogens immediately. c) they require costimulation from an activated t- cell. d) they produce memory cells when activated.

Which plains area lies in both the united states and canada? altiplano central canadian shield coastal plains great plains

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

Astore manager timed janette to see how long it would take her to fold and put away a sweater, a shirt, a pair of pants, and a scarf. it took her 26.1 seconds for the shirt, 24.3 seconds for the sweater, 32.8 seconds for the pants, and 18.2 seconds for the scarf. what was the average time it took janette to fold and put away all four items? during a catered lunch, an average of 4 cups of tea are poured per minute. the lunch will last 2 hours. how many gallons of tea should the caterer bring if there are 16 cups in one gallon?