2,4-D, a potent eudicot weed killer, is most likely a synthetic ____
a. auxin
b. gibberellin
c. cytokinin
d. phytochrome
e. brassinosteroid
ANSWER: a
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FSH in males targets ________ cells, which indirectly enhances sperm formation
Fill in the blank(s) with correct word
Which Ecdysozoan phylum contains animals called roundworms that are so plentiful in soil and other places that they may be the most abundant animals on Earth?
a. Nematoda b. Nemertea c. Annelida d. Arthropoda
Why are homes equipped with CO (carbon monoxide) detectors?
What will be an ideal response?
During a hot afternoon in August, Sara hosted a baby shower for her best friend. Other friends brought much of the food, including a cold cut platter and potato and macaroni salads. They set the food items out on the picnic table in the shade, and then chatted and enjoyed watching their friend open her gifts. It was close to two hours later before they had their meal. Later that evening, eight of the guests who had attended the shower began to feel nauseated and began to vomit severely. The vomiting lasted most of the night, but as morning came, it diminished and they began to recover. What is the most likely cause of the illness?
A. Infection with Salmonella enteritidis B. Botulism C. Infection with E. coli O15:H7 D. Infection with Shigella sp. E. Staphylococcal food intoxication