The partial negative charge at one end of a water molecule is attracted to the partial positive charge of another water molecule. What is this attraction called?

#Question id: 11546

#I Life Science/ Life Sciences Group – I-V

Steroid and polypeptide hormones typically have in common ________.

#Question id: 11546

#SCPH28 | Zoology

Steroid and polypeptide hormones typically have in common ________.

#Question id: 11547

#I Life Science/ Life Sciences Group – I-V

A cluster of tumor cells that produces and secretes growth factors to induce surrounding cells to grow and divide is showing which type of cell-to-cell signaling?

#Question id: 11547

#SCPH28 | Zoology

A cluster of tumor cells that produces and secretes growth factors to induce surrounding cells to grow and divide is showing which type of cell-to-cell signaling?

#Question id: 11548

#I Life Science/ Life Sciences Group – I-V

If a portion of the pancreas is surgically removed from a rat and the rat subsequently loses its appetite, one explanation is that the removed portion contains cells that secrete a chemical signal that somehow stimulates appetite. Given this scenario, what type of chemical signaling is occurring?

#Question id: 11548

#SCPH28 | Zoology

If a portion of the pancreas is surgically removed from a rat and the rat subsequently loses its appetite, one explanation is that the removed portion contains cells that secrete a chemical signal that somehow stimulates appetite. Given this scenario, what type of chemical signaling is occurring?