Groups of bacteria living together in a close-knit group are also known as ____.
A. eukaryotes
B. pathogenic bacteria
C. monophylogenic cultures
D. biofilms
E. archaea
Answer: D
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Answer the following statements true (T) or false (F)
1. The fossil record shows that angiosperms evolved directly from the Gnetophytes. 2. Incomplete flowers can be perfect flowers but imperfect flowers cannot be complete flowers. 3. Stamens and carpals are, in fact, modified sporangia-bearing leaves. 4. Horizontal gene transfer is restricted to prokaryotes and protists. 5. Secondary metabolites can be used to distinguish between different species of plants.
Which organism is oxidase-negative, oxidizes glucose, and is a nonlactose fermenter?
a. Escherichia b. Pseudomonas c. Acinetobacter d. Moraxella
The osculum of a sponge is entirely blocked by a fungal infection. Predict what will happen.
A. Water will be unable to enter the sponge. B. Choanocytes will no longer be able to function. C. Digestion will be prevented from occurring. D. The flow of water out of the sponge will decrease.
Is this statement true or false? All atoms consist of electrons, protons, and neutrons
Indicate whether the statement is true or false