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Gwar [14]
3 years ago
6

Select all that apply. In gymnosperms, pollination can occur by _____. bees

Biology
2 answers:
Ierofanga [76]3 years ago
5 0

The correct answer is the wind.

Gymnosperms are seeded plants whose seeds are naked, and are not enclosed in fruits. The male and female gametophyte structures develops in male and female cones.  Male and female cones borne on separate plants. In gymnosperms pollen grains are carried by winds to the naked ovules. Thus, pollination in gymnosperm is anemophily. After deposition of pollen grains on the ovule, pollen grain germinates, forming pollen tube which carries sperm cell preparation to fertilize with egg.  

MaRussiya [10]3 years ago
3 0
The wind and pollen dropping from trees

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Is the reduced form of cytochrome c more likely to give up its electron to oxidized cytochrome a or cytochrome b, why? Provide a
Vadim26 [7]

Answer:

The reduced form of cytochrome c more likely to give up its electron to oxidized cytochrome a having a higher reduction potential.  

Explanation:

Electrons from NADH and FADH2 flow spontaneously from one electron carrier of the electron transport chain to the other. This occurs since the proteins of the ETC are present in the order of increasing reduction potential. The reduced cytochrome b has lower reduction potential than cytochrome c1 which in turn has a lower reduction potential than the cytochrome c.

Cytochrome c is a soluble protein and its single heme accepts an electron from cytochrome b of the Complex III. Now, cytochrome c moves to complex IV which has higher reduction potential and donates the electron to cytochrome a which in turn passes the electrons to O2 via cytochrome a3.

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2 years ago
I need help
Mnenie [13.5K]

Answer:

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Explanation:

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Try looking this up through quizlet! i found one called “plant responses “ that may help you
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