Which of the following are groups of photosynthetic bacteria?
A) purple sulfur bacteria
B) green sulfur bacteria
C) cyanobacteria
D) all of the above
Ans: D) all of the above
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The surface tension of water is a result of the cohesive properties of water
Indicate whether the statement is true or false
In eukaryotic cells, which occurs during the prophase of mitosis?
a. duplication of chromatids b. replication of DNA c. separation of sister chromatids d. breakup of the nuclear envelope e. appearance of the nuclear envelope
A(n) ____________________ between chromosome 9 and chromosome 22 in chronic myelogenous leukemia results
in a Philadelphia chromosome. Fill in the blank(s) with the appropriate word(s).
The pattern of embryonic development in which only the cells lacking yolk subsequently undergo cleavage is called _____
A) holoblastic development, which is typical of marsupial mammals B) meroblastic development, which is typical of humans C) holoblastic development, which is typical of amphibians D) meroblastic development, which is typical of birds