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BIOL 160 Exam #3 worksheet 1

Across
one set of antennae, un-branched appendages
Insulin IS produced, but target cells of body and liver do not absorb glucose properly
two sets of antennae, branched appendages example- crayfish, shrimp
Exoskeleton of a tough, semi-flexible layered material, Protein and carbohydrate
Negative feedback adjustments, simple change that triggers an action that reverses a change
near constant body temp. regardless of environmental temp
body temperature fluctuates with environment
volves coordinated activities of many systems in a body to maintain a (near) constant internal environment around a “set point” (equilibrium)
4 pairs of legs, example- horseshoe crabm ticks, scorpion
Example- millipedes
six walking legs, exaples- grasshopper, bee, butterfly
joint-footed invertebrates
target cells don’t respond normally to insulin
Negative feedback adjustment that is complex, involving hormones, nerve impulses or proteins
Down
Feedback loop in which a physiological change leads to a greater change in the same direction
Shedding of exoskeleton
hyperactive Beta cells cause too much insulin release, not enough glucose left in bloodstream
no antennae, book lungs example- spiders, ticks, mites, scorpions
Example- centipedes
(autoimmune disease) – body’s immune system attacks Beta cells of pancreas
Feedback loop in which the body senses a change away from homeostasis and activates mechanisms to reverse the change