The last step of B cell activation is__________.

What will be an ideal response?


plasma cells secrete antibodies

Biology & Microbiology

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Xylem is able to extract water from soil because it is in direct contact with the soil

A. true B. false

Biology & Microbiology

When one parental allele is expressed and the other is silenced, the phenomenon is called ____

a. sex-linked inheritance b. uniparental inheritance c. cytoplasmic inheritance d. genomic imprinting e. maternal inheritance

Biology & Microbiology

What is the flash pattern used by female fireflies to attract males of their species an example of?  

A.  a sign stimulus B.  an innate releasing mechanism C.  a supernormal stimulus D.  sexual imprinting Clarify question: What is the key concept addressed by the question?. Gather Content: What do you already know about animal behavior? What other information is related to the question?  Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process:   Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?  

Biology & Microbiology

Refer to Figure 42-2. The surface labeled 4 is:

a. dorsal. b. ventral. c. medial. d. lateral. e. frontal

Biology & Microbiology