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hodyreva [135]
2 years ago
8

Describe the appearance of chromosome during the different stages of meiosis and mitosis? ​

Biology
1 answer:
omeli [17]2 years ago
8 0

Answer:

<em>Chromosomes compress, thicken, shorten, and become more apparent during prophase. At the centromere, chromosomes appear as two sister chromatids fused together. Chromosomes line up on the equator during metaphase.</em>

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5 0
3 years ago
Which trait is present in apes but absent in hominins? group of answer choices dental gap diastema gingival space mesial bridge
AfilCa [17]

The trait of the dental gap is present in apes but absent in hominins.

<h3>What do you understand by hominins?</h3>

The term "hominin" refers to a group that includes all living humans, all extinct human species, and all of our direct predecessors (including members of the genera Homo, Australopithecus, Paranthropus, and Ardipithecus). Sahelanthropus, Orrorin, and Ardipithecus are the earliest hominins. Many characteristics that set humans apart from other primates were absent in the ancestors of the human lineage. Sahelanthropus tchadensis from the Chad and Orrorin tugenensis from Kenya are the oldest hominins that are currently known. The skull of Sahelanthropus, which dates to between 6 and 7 mya, is mostly complete, and there are also some additional fragmentary bones.

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6 0
2 years ago
1. Why is it difficult to evaluate thresholds for toxic pollutants? a. Synergistic effects are difficult to account for. b. Ther
qaws [65]
The options are all related, and the answer is D) All of the Above. 

The synergistic effects of exposure to multiple toxins are more difficult to quantify and study. As a result, there is not sufficient research on how much a system can take when exposed to multiple pollutants. This lack of research also means that we often do not even know what the effect of these interactions between multiple toxins are.

As a result of these gaps in our knowledge of the interactions between toxins, it is difficult to evaluate the threshold for pollutants, since a system will rarely feature only one pollutant in isolation. 
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Explanation:

i think that this is right answer

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Answer:i have no clue

Explanation:

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