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tekilochka [14]
4 years ago
12

Describe four ways in which natural process add harmful particles to the air

Biology
2 answers:
Elan Coil [88]4 years ago
7 0
Volcanic<span>eruptions, forest fires, pollen which can cause allergies, and ozone which is a pollutant made after lightning interacts with oxygen which can cause iritate the eyes, throat and lungs. 
hope I helped </span>
leonid [27]4 years ago
4 0

The wind blows particles of molds and plant pollen; forest fires, soil erosion, and dust storms add particles of smoke and dust; erupting volcanoes spew out clouds of dust, ash, and poisonous gases.


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Why are chloroplasts more on one side of a cell than the other
vaieri [72.5K]

You would be referring to the <em>plant </em>cell.

Answer:

Chloroplasts may be seen on all six sides of a plant cell, which is a three-dimensional entity with typically moderately rounded corners (not in the centre because a big central vacuole fills a very large part of the volume). Chloroplasts are constantly being rearranged by the cell since they are not set in place. Chloroplasts are typically located close to so-called periclinal cell walls, which are oriented in the same 2D orientation as the leaf surface under low light. Chloroplasts seem to "escape" to the anticlinal walls in bright light. Better light harvesting in low light by exposing every chloroplast to light and photoprotection by mutual shading in strong light are likely the fitness benefits provided by this behavior. In the dark, chloroplasts also gravitate toward the anticlinal walls. Thin leaves of submerged aquatic plants like Elodea can be used as microscope specimens to observe chloroplast motions. One can gauge how much light gets through a leaf in land plants. What I just said concerning the top layer(s) of leaves' "palisade parenchyma cells" is accurate. Most of the chloroplasts are found in these cells. Numerous cells in the spongy parenchyma under the palisade layer lack well marked peri and anticlinal walls.

<h2>How did plant cells incorporate chloroplasts in their DNA?</h2>

Chloroplasts must reproduce in a manner akin to that of some bacterial species, in which the chloroplast DNA is duplicated first, followed by binary fission of the organelle (a kind of protein band that constricts so that two daughter organelles bud off). As a result of some chloroplast DNA actually being integrated into the plant genome (a process known as endosymbiotic gene transfer), it is now controlled in the nucleus of the plant cell itself.

8 0
2 years ago
Which of the following is the best definition of pseudoscience?
MrMuchimi

Answer:

B. Information that is presented as scientific but has not been gathered through reliable scientific methods.

Explanation:

Pseudocience is defined as a collection of beliefs or information that claims to be scientific as it is supposedly gathered by a scientific method, but in reality, is not based on a reliable scientific method.

Although Letter A is similar, pseudoscience does not provide real "evidence," as it is based only on personal beliefs, which is also a non-reliable data. Letter C is not correct as this information is not collected through the scientific method, and Letter D is not sufficient, as pseudoscientists usually mention the fact that their beliefs or information are based on scientific facts.

As pseudoscience is falsely regarded or presented as scientific, the correct answer is Letter B.

7 0
3 years ago
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Lunna [17]
Cyclosis ? Or is that wrong
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4 years ago
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ohaa [14]

Answer:

Halooooooooooooooooooooo

Explanation:

Hi

3 0
3 years ago
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Andru [333]

Answer:

A

Explanation:

the 1st one is the answer

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