Bioluminescent signals that fireflies and certain fishes send to distant receivers in the dark are classified as ____
signals.
a. tactile
b. visual
c. chemical
d. electrical
e. mechanical
ANSWER: b
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Which of the following is capable of phosphorylating key proteins involved in regulating the cell cycle?
A. cyclin B. CDK C. phosphatase D. p53 protein E. cyclin-CDK complex
The ____Lophotrochozoan phylum contains the most species, with about 100,000 living species described
a. Rotifera b. Mollusca c. Platyhelminthes d. Annelida e. Nemertea
In the "Gross National Happiness" video, the Fourth Dragon King established a new system of measuring the development of the country of Bhutan based on values and happiness. What was the final gift he gave the people of Bhutan to contribute to Gross National Happiness?
A. free healthcare system B. free education for every citizen C. democratic governance, he gave up his own sovereignty as king D. healthy family relationships E. new holidays to celebrate cultural heritage
_____________ send signals that control muscles and glands.
Fill in the blank(s) with the appropriate word(s).