Which pair would have been likely to agree that strata such as those depicted here were deposited gradually over long periods of time by subtle mechanisms that are still at work?

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#Question id: 5076

#XL - T Zoology

Homeotic genes are responsible for:

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#Question id: 5077

#XL - T Zoology

Humans and mice heterozygous for loss-of-function mutations in Pax6 have:

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#Question id: 5078

#XL - T Zoology

A human blastomere is:

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#Question id: 5079

#XL - T Zoology

The pattern of embryonic development in which only the cells lacking yolk subsequently undergo cleavage is called:

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#Question id: 5080

#XL - T Zoology

As cleavage continues during frog development, the size of the blastomeres:

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#Question id: 5081

#XL - T Zoology

 The vegetal pole of a frog zygote differs from the animal pole in that ________.