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Tom [10]
2 years ago
9

Unlike ferns, angiosperms use ________ to contain their embryos.

Biology
1 answer:
lara31 [8.8K]2 years ago
7 0

answer is seeds

when you hear angiosperms think fruit

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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.

3 0
3 years ago
Which of the following cells would be found in xylem tissue?
alex41 [277]

Answer:

D. guard cells.. this is answer i think..

3 0
2 years ago
If a person has adapted to an environment, they have __________. a. maintained their unique customs to help them survive b. adju
nirvana33 [79]

Answer:

I think the answer is either B or D

5 0
1 year ago
Some organisms can reproduce by "cloning" themselves, an asexual process. which type of organism is least able to naturally repr
laila [671]

Mammals is the type of organism that least naturally reproduced by cloning. Mammals reproduced by Sexual reproduction typically requires the sexual interaction of two specialized organisms, called gametes, which contain half the number of chromosomes of normal cells and are made by meiosis, which usually a male fertilizing a female.

7 0
3 years ago
As you study two closely related predatory insect species, the two-spot and the three-spot avenger beetles, you notice that each
AVprozaik [17]

Answer:

d. Character displacement

Explanation:

Character displacement is the phenomenon in which the similar species living in the same geographical region with similar niches differentiate in order to reduce their niche overlap and avoid competitive exculsion. Just like in this case of two- spot and three -spot avenger beetles as their timmings for hunting is different where their ranges overlap. So it's the good example of character displacement,

8 0
2 years ago
Read 2 more answers
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