Flattened, two-dimensional protrusion of membrane, supported by a meshwork of actin filaments, that is extended from the leading edge of crawling epithelial cells, fibroblasts, and some neurons is known as

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#Question id: 8923

#Unit 9. Diversity of Life Forms

Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?

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#Question id: 2360

#Unit 2. Cellular Organization

A mitochondrion has a(n) ______ , an inner space filled with a gel-like fluid.

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#Question id: 1372

#Unit 4. Cell Communication and Cell Signaling

Match the following junctions (Column I) with their functions (Column II).

Column I	Column II
a. adherens junctions	i. Controlling solute flow, signaling
b. gap junctions	ii. Shape, rigidity, signaling
c. tight junctions	iii. Shape, tension, signaling, force transmission
d. hemidesmosomes	iv. Communication, small-molecule transport between cells

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#Question id: 15216

#Unit 13. Methods in Biology

There is no SDS in native (Buffer) Gels, but good resolution is achieved due to

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#Question id: 29003

#Unit 7. System Physiology – Animal

Parathyroid cell membrane contains___