Cyanobacteria play a tremendous ecological role. Among other things, they are responsible for
a. removing tons of oxygen from the atmosphere.
b. converting nitrogen in the soil to nitrogen gas.
c. providing usable forms of carbon and nitrogen for other organisms.
d. killing harmful bacteria in soil.
e. producing many antibiotics.
C
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Explain the importance of decomposition in an ecosystem. Cite an application of this process for human systems
What will be an ideal response?
The structure in the above figure demonstrates which of the following?
a. transcription and translation occur simultaneously on a single strand b. ribosomes attached to a strand of DNA c. a small ribosomal subunit d. multiple ribosomes on a strand of mRNA e. a single unattached ribosome
In garden peas, one pair of alleles controls the height of the plant, and a second pair of alleles controls flower color
The allele for tall (D) is dominant to the allele for dwarf (d), and the allele for purple (P) is dominant to the allele for white (p). A tall plant with purple flowers crossed with a dwarf plant with white flowers produces 1/4 tall purple, 1/4 tall white, 1/4 dwarf purple, and 1/4 dwarf white. What is the genotype of the parents? What will be an ideal response?
Why is ecology considered an interdisciplinary science?
A) It involves a large expanse of various species. B) It involves and draws from various fields of science such as geology, hydrology, and meteorology. C) It encompasses the field of environmental science. D) It includes the study of human population growth.