Use the product rule to calculate the probability (P) of two independent events, X and Y, both occurring
a. P = X2 + Y2
b. P = X2Y2
c. P = XY
d. P = X + Y
e. P = (X + Y)2
ANSWER: c
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Answer the following statements true (T) or false (F)
1. Lichens are monophyletic. 2. In a lichen, the fungus and the symbiotic algae are highly coevolved. 3. Many kinds of ascomycetes and basidiomycetes have lost the ability to reproduce sexually. 4. Some chytrids parasitize protists. 5. Some yeasts have "stripped-down" genomes as small as 200 protein-coding genes.
Mussels outcompete barnacles for space in the middle intertidal zone of the temperate rocky intertidal
Indicate whether the statement is true or false
Neural activity involves transmission of information through electrical events, in contrast endocrine
activity involves
a. transport of hormones in the circulation system to target tissues. b. transport of hormones in neurons to target tissues. c. release of hormones in body fluids for transport. d. changes in neural activity for transport of hormones to target tissues. e. transmission of information through chemical reactions.
It's the ninth inning, and the bases are loaded. As the pitcher winds up to throw the ball, how does each tissue in his arm contribute to this critical pitch? The ________ of his fingers grips the ball. His ________ sends instructions that trigger his ________ to contract. His ________ provides stability and transmits the force produced.
A. ectoderm; ectoderm; mesoderm; endoderm B. epithelium; ectoderm; mesoderm; endoderm C. epithelial tissue; nerve tissue; muscle tissue; connective tissue D. connective tissue; nerve tissue; muscle tissue; epithelial tissue