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2 years ago

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Which of the following sex and generation combinations directly produces the pollen tube of angiosperms?A) male gametophyteB) fe

male gametophyteC) male sporophyteD) female sporophyte

1 answer:

Alexxandr [17]2 years ago

4 0

The correct answer is A. male gametophyte

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<span>Diameters in meters:

Sun 1,391,000,000 m
Mercury 4,879</span>,000 m <span>
Venus 12,104</span>,000 m <span>
Earth 12,756</span>,000 m <span>
Mars 6,794</span>,000 m <span>
Jupiter 142,984</span>,000 m <span>
Saturn 120,526</span>,000 m <span>
Uranus 51,118</span>,000 m <span>
Neptune 49,528</span>,000 m

Ratio: $\frac{10}{1,391,000,000} =7.2\times 10^{-9}$
Multiply each planet by $7.2\times 10^{-9}$ to get the diameter in meters.

Mercury 4,879,000 m × $7.2\times 10^{-9}$ = 0.035704 m = 37.7 mm
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