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Vanyuwa [196]
3 years ago
11

Helpppppp !!!!!!!!!!​

Biology
1 answer:
Kruka [31]3 years ago
3 0
I think it’s either the first or last one
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The following are the steps for B-cell activation. The steps are in an incorrect order.
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4. B cells become activated by interacting with helper T cells.  

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a. hemoglobin now binds more oxygen at low partial pressures than at high partial pressures.

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I took regular Biology in 9th Grade, AP Chemistry in 10th Grade, AP Biology in 11th Grade, and DE (Dual Enrollment) Microbiology in 12th Grade. Currently majoring in Biology at the University of Michigan - Ann Arbor.

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