Without energy, organisms could NOT
a. maintain homeostasis.
b. carry out chemical reactions.
c. make their own food.
d. all of the above.
Answer: d. all of the above.
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Organs are made up of ________ type(s) of tissue.
A. Two or more B. Two C. One D. At least five
In looking at the species—area plot in the figure above, what can be concluded?
A) Number of bird species increases linearly with island area. B) Number of bird species remains the same on these various islands. C) Diversity is independent from island area. D) Number of bird species increases exponentially with island area.
Compare and contrast DNA and RNA
What will be an ideal response?
Which statement about adaptation is correct?
A. Higher organisms are better adapted than lower organisms. B. Adaptations arise because they are needed in particular environments. C. The adaptive value of a trait varies as the environment changes. D. Better-adapted organisms are more complex than are poorly adapted organisms.