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TLS Online TPP Program

#Question id: 11542

Different body cells can respond differently to the same polypeptide hormones because ________.

#Unit 7. System Physiology – Animal
  1. different target cells have different sets of genes
  2. a target cell's response is determined by the components of its signal transduction pathways
  3. the circulatory system regulates responses to hormones by routing the hormones to specific targets
  4. the hormone is chemically altered in different ways as it travels through the circulatory system
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TLS Online TPP Program

#Question id: 12671

#Unit 6. System Physiology – Plant

When genetic changes in an entire plant population have been fixed over many generations by selective environmental pressure, those changes are referred to as,
TLS Online TPP Program

#Question id: 5538

#Unit 5. Developmental Biology

The first truly vertebrate phase of development is manifested by the formation of the
TLS Online TPP Program

#Question id: 1286

#Unit 4. Cell Communication and Cell Signaling

Syndecans are cell-surface proteoglycans that:

a. bind to collagens.

b. bind to multi-adhesive matrix proteins.

c. anchor cells to the extracellular matrix.
TLS Online TPP Program

#Question id: 2065

#Unit 2. Cellular Organization

Which of the following are least likely to diffuse through the phospholipid bilayer of a cell membrane?
TLS Online TPP Program

#Question id: 15758

#Unit 12. Applied Biology

Adsorbants like activated charcoal or PVP (polyvinylpyrrolidon) may be used as adsorbant to prevent