What is the primary original source of genetic variation in a population?
A) mutation
B) genetic drift
C) blending inheritance
D) cloning
A
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Marine microbes inhabit sediments on the ocean floor at a depth of up to at least ________.
A. one foot B. 100 feet C. 0.6 kilometers D. ten feet
An arrangement of microtubules located in the matrix of cilia and flagella is called the ________.
A. axial bundle B. axoneme C. axillary tubule D. axial filament
At the end of the "photo" reactions, where electrons are being passes from photosystem to electron transport chain to photosystem, where do the electrons finally arrive?
a) ATP b) NADPH c) The electrons are transferred to the synthesis reactions d) water
`Please match the description to the correct group of microorganisms. Single-celled prokaryotes
A) Algae B) Viruses C) Bacteria D) Protozoa E) Fungi F) Helminths