Carbohydrates can be converted into
A. glycerol.
B. fatty acids.
C. amino acids.
D. All of these answers are true.
D. All of these answers are true.
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The level of specific mRNA, and therefore the expression of a given gene in a particular ecosystem, can be evaluated in the environment using in situ reverse transcriptase (ISRT)-FISH.
Answer the following statement true (T) or false (F)
The bacterium shown to be associated with the majority of gastric ulcers is
A) Streptococcus lactis. B) Staphylococcus aureus. C) Helicobacter pylori. D) Escherichia coli. E) Streptococcus pyogenes.
Effector
Match the letter of each example from childbirth to the appropriate component of a positive feedback loop. A. pituitary gland secretes oxytocin, which acts on the uterus B. uterine contractions increase C. fetus is pushed against uterine opening D. receptors detect stretch E. brain receives and compares stretch information Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about positive feedback? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following statements is true of proteins?
a. Proteins lose some or all of their normal activity if their three-dimensional structure is disrupted. b. Proteins are composed of ribose, phosphate, and a nitrogen-containing base. c. The activity of proteins is independent of temperature and pH. d. Denaturation is usually reversible. e. All proteins are enzymes.