Which of the following would most likely not influence the pattern of succession in a recently disturbed habitat?
A. the number of symbiotic relationships that
exist in the habitat
B. the amount of available sunlight
C. soil composition
D. the amount of open space
E. existing species in the habitat
A
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Auxins primarily flow downward in shoots and roots and this transport is called
A. bipolar. B. polar. C. nonpolar. D. tripolar. E. dipolar.
Fossils include
a. skeletons. b. shells. c. seeds. d. tracks. e. all of these.
If the DNA of a new discovered organism exhibits genes that are arranged as operons and lacks intron sequences, the hypothesis that this organism is bacterial rather than mammalian would be supported by the evidence.
Answer the following statement true (T) or false (F)
Which of the following statements about retroviruses is false?
(a) Retroviruses are packaged with a few molecules of reverse transcriptase in each virus particle. (b) Retroviruses use the host-genome integrase enzyme to create the provirus. (c) The production of viral RNAs can occur long after the initial infection of the host cell by the retrovirus. (d) Viral RNAs are translated by host-cell ribosomes to produce the proteins required for the production of viral particles.