Bacteria that produce nitrite ( NO2- ) during anaerobic respiration would use ___ as their final electron acceptor.
A. NO3-
B. O2
C. N2
D. N2O
A. NO3-
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Over the past several decades, the overall trend for earth's temperatures has been
A. decreases in overall global temperatures at an accelerating rate, a phenomenon known as global cooling. B. a gentle trend towards colder winters and hotter summers, which averages out to be very little overall global temperature changes. C. cyclical periods of warming and cooling, known as global climate change. D. increases in overall global temperatures at an accelerating rate, a phenomenon known as global warming.
In _____________ reproduction, the offspring and parent have identical genes
Fill in the blank(s) with the appropriate word(s).
The source of a plant's new cells is a type of plant tissue called its
A. tracheid. B. meristem. C. guard cell. D. cortex. E. mesophyll.