Antagonists of Wnt:

Secreted frizzled-related protein (Sfrp)

Wnt inhibitory factor (Wif)

Dickkopf (Dkk) family

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#Unit 10. Ecological Principles

Time to reach a certain population

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#Id: 9209

#Unit 11. Evolution and Behavior

Founder effect

A few individuals form a population start a new population with a different allele frequency than the original population.

Sampling error can arise is through the founder effect, which results from the establishment of a population by a small number of individuals.

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#Unit 5. Developmental Biology

Dictyostelia (social amoebas)

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#Id: 1173

#Unit 7. System Physiology – Animal

There are two types of photoreceptors:

Rods 

Cones

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#Id: 3772

#Unit 1. Molecules and their Interaction Relevant to Biology

Matter is anything that takes up space and has mass.