In the process of double fertilization, one sperm fuses with the egg and the other sperm fuses with a spore
____________________ Indicate whether the statement is true or false.
False - the polar nuclei
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The ultimate electron acceptor in aerobic respiration is
a. NAD+. b. CO2. c. ADP. d. NADP+. e. O2.
Which of the following is a TRUE statement about the relationship between RNA interference and mobile genetic elements?
A) RNA interference is a mechanism that allows mobile genetic elements to move to new locations in a genome. B) RNA interference is a laboratory method that researchers use to study how mobile genetic elements function. C) RNA interference is a mechanism for silencing mobile genetic elements that exist in many kinds of organisms. D) RNA interference does not have a known relationship with mobile genetic elements.
Which term refers to a cell cluster that contains both algal and hyphal cells and is used for asexual reproduction in lichens?
a. a haustorium b. a soredium c. an arbuscule d. a thallus
A focal infection is where the infectious agent
A) remains confined to a specific tissue. B) spreads to several sites and fluids, usually in the blood. C) breaks loose from initial infection and is carried to other tissues. D) follows an initial infection by another agent.