Chapter 3

Question 1

endocrine system

Answer 1

a communication network of ductless glands that secrete chemical messengers called hormones.

Question 2

protein hormones

Answer 2

most vertebrate hormones, made up of strings of amino acids

Question 3

peptide hormones

Answer 3

when hormones are small and only made up of a small number of amino acids

Question 4

steroid hormones

Answer 4

The lag time of when a stimulus is sensed and a hormone is produced is longer than protein hormones, steroid hormones cannot be stored in cells so they are immediately released into the bloodstream. hydrophobic

Question 5

target cell

Answer 5

cells with the receptor site for a particular hormone are target cells for that hormone

Question 6

axons

Answer 6

nerve cell fibers that transmit electrical information from one nerve cell to another

Question 7

dendrites

Answer 7

nerve cell fibers that receive electrical information from other cells

Question 8

mushroom bodies

Answer 8

a cluster of small neurons located at the front of the brain of some invertebrates and associated with spacial navigation

Question 9

Geoff Hill interview

Answer 9

Science today is very exact, scientists have to focus on one thing rather than a whole field of things to keep with with all the research that is coming out daily. Studies birds, proximate vs ultimate perspectives.