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REY [17]
3 years ago
9

Read this passage:invasive species from china and europe have led to the near-extinction of many native species, including the a

merican chestnut tree.which term best describes the structure of the passage?
Biology
2 answers:
Mars2501 [29]3 years ago
7 0

Answer:

Cause-and-effect

Explanation:

"Cause-and-effect" is a term that refers to a situation that happened because it was caused by another situation. An example of this can be seen in the question above, where the danger of extinction of some native species was caused by the introduction of invasive species from China and Europe. That is, the invasion of species from China and Europe were the causes that caused an almost extinction effect of native species, such as the American chestnut tree.

Aneli [31]3 years ago
6 0
Cause and effect -Apex
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Schizogony is an important aspect of which of the following diseases?A. Chagas diseaseB. schistosomiasisC. toxoplasmosisD. plagu
Gwar [14]

Answer:

E. Malaria

Explanation:

Schizogony refers to the process of asexual reproduction through the process of multiple fission. The malaria parasite, <em>Plasmodium</em> species, enters the human body through the bite of female anopheles mosquitoes.

These mosquitoes carry haploid sporozoites in their saliva which are released into the bloodstream of human. The haploid sporozoites enter the liver cells where they multiply and increase their number through the process of multiple fission.

The process of schizogony in sporozoites of malaria parasite produces merozoites which are then released from the liver cells.

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3 years ago
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A. At what time of day does photosynthesis take place?
Ksenya-84 [330]

Answer:

Naturally: only during daylight hours

Artificially: all 24 hours (under perfect circumstances)

Explanation:

Photosynthesis can only occur when a plant receives energy from a light source. Naturally, the light source would be the sun which is only around for a certain amount of hours. If the plant is under an artificial light source, like a lamp, then photosynthesis can occur at all hours of the day.

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3 years ago
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Wind shear can result in the formation of a _______.
Free_Kalibri [48]
Wind shear can result in the formation of a tornado
8 0
4 years ago
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Use the mechanisms of meiosis to explain why most mules are sterile.
Tema [17]

Answer:

3. An even number of chromosomes are required for synapsis during prophase I and proper pairing during metaphase

Explanation:

Mules are hybrids of a cross between a female horse and a male donkey. Horses contain 64 chromosomes while donkeys contain 63 chromosomes in their somatic cells respectively. This means that they each produce 32 and 31 chromosomes respectively during meiosis. A mule, hence, contains 32+31= 63 chromosomes in their somatic cells.

This chromosome number in mules are uneven for meiosis to occur because meiotic division requires that an even number of homologous chromosomes pair together in a process called SYNAPSIS during prophase I of meiosis I. This is impossible in a mule because of the uneven number of chromosomes in its cells.

Also, during metaphase of meiosis, the homologous chromosomes need to be properly aligned at the equator for separation to occur. This is also impossible in a mule considering the number of chromosomes that don't add up.

Due to this reason of unevenness in the number of chromosomes present in a mule, meiosis will not occur and if meiosis (gamete formation) does not occur, reproduction cannot take place. Therefore, the mule is a sterile species i.e. cannot produce offsprings via sexual reproduction.

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