Which of the following statements about a gram- cell wall is FALSE?
A. It maintains the shape of the cell
B. It has a thin layer of peptidoglycan
C. It has an outer membrane of lipids
D. It has teichoic acids
Answer: D. It has teichoic acids
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The outermost layer of the human eye is the _____
Fill in the blank(s) with correct word
Propose reasons why major extinction events (or explosions of life-forms) are good dividing lines for the geologic timescale. Support your answer
What will be an ideal response?
Laboratory animals must be used to determine lethal and infectious doses of viruses.
Answer the following statement true (T) or false (F)
When glucose is being used up and not replaced from food intake, the blood sugar level can be maintained by synthesizing glucose from smaller molecules such as pyruvate or lactate. This process is called gluconeogenesis
Which organ is principally responsible for supplying glucose to the rest of the body when glucose reserves are low? (a) liver (b) pancreas (c) spleen (d) gall bladder