The P1 cell develops autonomously without the presence of AB, generating all the cells it would normally make, and the result is the posterior half of an embryo.

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#Id: 4736

#Unit 5. Developmental Biology

The zygote of C. elegans exhibits rotational holoblastic cleavage.

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#Id: 10277

#Unit 6. System Physiology – Plant

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#Id: 7766

#Unit 1. Molecules and their Interaction Relevant to Biology

Atoms are indivisible particles that can't be created or destroyed in a chemical reaction

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#Id: 5434

#Unit 7. System Physiology – Animal

In response to a depolarizing stimulus, some of the voltage-gated Na+ channels open and Na+ enters the cell and the membrane is brought to its threshold potential (approximately −55 mV)

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#Id: 5685

#Unit 7. System Physiology – Animal

The posterior lobe hormones are nanopeptides with a disulfide ring at one end