What is required for communication?
What will be an ideal response?
Ans: Generally 4 things 1. Signal 2. Medium of communication for the signal to go through 3. Receptor for that signal 4. A response or decoding of the signal
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Proteins that do not refold properly after being heated generally require the assistance of which one of the following types of molecules in vivo?
A. polymerases B. ribosomes C. enhancers D. chaperones E. transferases
Filamentous organisms such as Sphaerotilus and Thiothrix can lower the efficiency of activated sludge processes by causing ________.
A. building sludge B. acidified sludge C. bulking sludge D. anaerobic sludge
The photoreceptors of an earthworm are
located
a. on short antennae. b. on their body surface. c. in their eyes. d. near the tip of their tail. e. nowhere- earthworms do not have photoreceptors.
Which of the following is a waterborne pathogen that causes severe diarrhea?
A) Entamoeba histolytica B) Naegleria fowleri C) Campylobacter jejuni D) Toxoplasma gondii E) Gonyaulax species