Hormones are typically involved in maintaining ____ , or a given steady state for a particular factor (like sugar or calcium levels in the blood)
Fill in the blank with the appropriate word.
homeostasis
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The place where vibrations are translated into patterns of nerve impulses is the:
a. pinna b. ear canal c. middle ear d. cochlea e. eardrum
Which of the following does not stimulate the
production of males in water fleas? a. spring. b. warm water. c. salty water. d. high competition for resources. e. crowding.
In which marine environment would you find the greatest diversity of species?
What will be an ideal response?
If all of the phloem is stripped from around a tree in
a process known as girdling, a. the plant will stop growing. b. the vascular cambium will be destroyed so that the plant can no longer grow. c. the shoot system will get no moisture or minerals. d. the roots will starve and eventually the plant will die. e. there will be no problems unless the tree becomes infected by insects and fungi.