Elephants are not the most abundant species in african grasslands, yet they influence community structure. the grasslands contain scattered woody plants, but they are kept in check by the uprooting activities of the elephants. take away the elephants, and the grasslands convert to forests or to shrublands. the newly growing forests support fewer species than the previous grasslands. why elephants are the keystone species in this scenario?
Answers: 2
Biology, 21.06.2019 12:30, infoneetusinghoyg22o
Which of the following best describes homeostasis? a. keeping the internal environment in a stable state b. keeping the external environment in a stable state c. beneficial characteristics resulting from mutation d. reproduction that results in offspring identical to the parent.
Answers: 1
Biology, 22.06.2019 00:10, 4004JuCh18
Lymphatic vessels remove excess fluid from tissues. often after mammexront( the surgical procedure to remove of all or part of a breast) the lymphatic vessels draining the arm are damaged. explain a consequence of this damage. what can be done to reduce the symptoms?
Answers: 3
Biology, 22.06.2019 01:10, nakeytrag
Osmosis is often viewed incorrectly as a process driven directly by differences in solute concentration across a selectively permeable membrane. what really drives osmosis? view available hint(s)osmosis is often viewed incorrectly as a process driven directly by differences in solute concentration across a selectively permeable membrane. what really drives osmosis? the first law of thermodynamicsthe difference in the height of water columns on either side of a selectively permeable membranethe difference in water concentration across a selectively permeable membranethe difference in sugar or ion concentration across a selectively permeable membrane
Answers: 2
Biology, 22.06.2019 05:40, Student658
Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine
Answers: 1
Elephants are not the most abundant species in african grasslands, yet they influence community stru...
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