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NISA [10]
3 years ago
10

Using the diagram above, a key characteristic of aquatic dead zones is ________ and which activities is most directly related to

the dead zones in the Gulf of Mexico just west of the Mississippi River?
A) high concentration of dissolved oxygen, and extensive shrimp fishing
B) low concentration of dissolved oxygen, and farming in the Midwest
C) high concentration of nitric oxides and burning coal to generate electricity in the Northeast.
D) low concentration of dissolved phosphates an Barge traffic on the Mississippi River

Biology
1 answer:
ollegr [7]3 years ago
3 0
C makes the most sense.

Sorry if I’m wrong
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The answer would be D, 7 hours of sleep
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Explain phloem structure and function, using the following terms: sieve elements, sieve cells, companion cells, girdling, transl
madam [21]

Answer:

Explanation:

Phloem cells are conducting vessels that are found in vascular plant. They are used in the transport of photosynthate produce during photosynthesis from the source of production to other parts of the body.

It consist of sieve elements, which are the conducting vessel that aids transport of sugar round the body. They are very active before maturity at mature they are no longer in use.

Companion cells are used in replacement of sieve element at maturity, they function in metabolism together with the sieve tube Translocation is the transport or movement of sugar round the body.

Girdlings is the removal of the bark of a plant this can inhibit active transport of food.

Non-reducing sugar are monosacharrides such as glucose that are produce and transported round the body of the plant.

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2 years ago
Select the correct text in the passage. Which quotation from "The Tell-Tale Heart" by Edgar Allan Poe brings out the theme of ti
pishuonlain [190]
In "The Tell-Tale Heart," what prevents the narrator from killing the old man during one of the first seven nights? The narrator says that his reason for killing the old man is that he does not like the old man's "pale blue eye, with a film over it" - he calls it a "vulture eye" and an "Evil Eye".
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A researcher claims that the Makira Island and the Santa Ana Island flycatchers are diverging into different species. Identify T
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Answer:

Prezygotic barriers:

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2. Behavioral isolation

Explanation:

Pre-zygotic barriers are the barriers which do not allow the formation of the zygote in the organisms.

The two mechanisms of the pre-zygotic barriers are the:

1. Habitat isolation: the Flycatchers do not share the same habitat which is also mentioned in the question that they live on different islands.

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Thus, Habitat isolation and Behavioral isolation are correct.

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