Which method of hiding from the host immune system is incorrectly matched with its description?
A) latency: a pathogen exists quietly inside the host cell
B) antigen variation: the pathogen frequently switches its antigens
C) living intracellularly: a pathogen resides on the surface of a host cell where it is hidden by host cell surface molecules
D) antigen mimicry: the pathogen's antigens are similar in structure to host molecules
E) antigen masking: the pathogen covers itself in host factors to avoid detection of its own antigens
Answer: C
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The view developed by H. A. Gleason that communities result from similarities in species' requirements and tolerances for environmental factors is referred to as the ________ concept of communities
Fill in the blank(s) with correct word
The process of biological evolution often allows humans to survive consistent environmental stresses that occur across multiple generations. As humans colonized Earth's diverse environments, they encountered hot, dry areas and decided to settle
What trait likely offered an advantage in this environment? A) the ability to produce sweat to cool their bodies B) the ability to shiver to create body heat C) the ability to squint eyes to block out bright light D) the ability to dig deep holes to find groundwater
Anoxygenic photosynthesis typically results in the production of (oxygen/sulfur/ammonia) as a waste product
What will be an ideal response?
Prosthecate bacteria form
a. stalks. b. hyphae. c. appendages. d. stalks, hyphae, and/or appendages.