Answer to Question 1ANS: C
Plankton are very weak swimmers. They are dependent on waves and currents for movement. There is
a large diversity of plankton. Information can be found in the section Plankton Drift in the Ocean.
Answer to Question 2ANS:Answer
should include:
The greenhouse effect is the rapid warming of the Earth due to the trapping of heat in the
atmosphere. Greenhouse gases are able to allow light energy to enter the atmosphere, but
make it difficult for the reflected rays to leave the atmosphere.
The greenhouse gases are carbon dioxide, methane (both of which are produced in large
quantities by human related activities), water vapor, and chlorofluorocarbons . These are
constantly insulting the atmosphere.
The greenhouse effect is something that is needed for life to exist on Earth. The problem
lies with the intensification brought on by humans. The main contribution to greenhouse
gases that we make is from energy consumption.
There are many things that can occur with global warming. There will be a decline in
biological productivity, the melting of the Arctic, and major disruptions to all
ecosystems. Many more are listed in the chapter.
Internal oblique
(A) Internal anatomy of the spinal cord. (B) Ascending spinal tracts.
Inherited DNA directs development of an organism.
Internal organs of the female reproductive system within the pelvis
Internal structure of the nose—lateral view
frog internal