Inference or Observation? Object A feels heavier then object B.

1 answer:

8 0

Observation!
An inference is something you can’t directly see or feel, like in this case you might *infer* that Object A is made of a more durable material because it is heavier.

On the other hand, an observation is something you can directly see or understand. In this case, you felt that Object A was heavier and knew from feeling it that it was heavier.

In conclusion; an observation is something you can directly observe, while an inference is something you make when using logic to decide something about something.

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Which process depends on binding between specific molecules on both the host and pathogen, so that the pathogen can gain a stabl

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Adhesion depends on binding between specific molecules on both the host and pathogen so that the pathogen can gain a stable foothold on host tissues.

<h3>What is adhesion?</h3>

In epidemiology, adhesion makes reference to the process in which pathogen and host interact during an infection.

The adhesion process is fundamental to reach the survival of the pathogen during a particular infection.

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Learn more about the adhesion process here:

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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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Anyone knows this one?<br> Help please!!!!!

frozen [14]

Answer:

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Meiosis results in four <u>haploid</u> cells that are all genetically different from each other.

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