Devise an example of a food chain with four links.
What will be an ideal response?
Answers will vary but should all start with a plant.
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Which of the treatments listed below would be MOST effective for a patient with a genetic defect that causes severe combined immunodeficiency (SCID)?
A) intravenous antibiotics B) bone marrow transplant C) multiple immunizations D) repeated doses of antisera
What is a growth factor?
A. a small protein that influences cell growth and division B. a signaling molecule involved in paracrine signaling C. a soluble molecule that can alter gene expression in a cell D. All of these answer options are correct.
All EXCEPT which feature is characteristic of
millipedes? a. more pairs of legs than centipedes b. two pairs of legs per segment c. active predators d. cylindrical body shape e. inhabitants of the forest floor
Fatty acids tales make up the _________ portion of the plasma membrane and are located on the _____________ of the membrane
a. hydrophilic; inside b. hydrophilic; outside c. hydrophobic; inside d. hydrophobic; outside