The greatest amount of nutrient absorption

takes place in the
a. stomach.
b. small intestine.
c. colon.
d. pancreas.
e. esophagus.


B

Biology & Microbiology

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Explain the ethical concerns with germline gene therapy in humans

What will be an ideal response?

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Recent fossil discoveries may represent the earliest animal species ever found. How old are they?

a. 430 million years old b. 25 million years old c. 650 million years old d. 5 billion years old

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Anaerobic oxidation of (methane/rubisco/plastics) produces carbon dioxide.

Fill in the blank(s) with the appropriate word(s).

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Cytochalasin is a drug that caps actin filament plus ends, thus preventing actin polymerization. Phalloidin is a drug that binds to and stabilizes actin filaments, preventing actin depolymerization

Even though these drugs have opposite effects on actin polymerization, the addition of either of these drugs instantaneously freezes the cell movements that depends on actin filaments. Explain why drugs that have opposite effects on actin filaments can have a similar effect on cell movements.

Biology & Microbiology