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nasty-shy [4]
2 years ago
5

In 1980, scientists proposed a hypothesis that suggested that a meteorite struck earth and caused the mass extinction that inclu

ded the dinosaurs. why are new hypotheses often criticized?
Biology
1 answer:
Mashutka [201]2 years ago
7 0

The new hypotheses proposed by different scientists are often criticized by the others because these new hypotheses contradict the ideas and hypotheses that already exist. Adapting one's mind to a new hypotheses explaining a past event is often difficult when more clear hypotheses were already given earlier. Thus, the hypotheses suggesting the extinction of the dinosaurs are difficult for the scientific community to accept.

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Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After
Brums [2.3K]

Answer: asexual reproduction

Explanation:

From the question, we are informed that Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. We are further told that after about a week, tiny roots had begun to grow. This is simply an example of asexual reproduction.

Asexual reproduction is simply refers to a form of reproduction which doesn't have to do with changing the chromosomes or gametes fution. In this case, the fact that tiny roots began to grow despite the fact that there was no fusion of gamete shows that it's an asexual reproduction.

8 0
1 year ago
Read 2 more answers
When evacuating victims and endangered personnel in a severe emergency in relation to the support zone where should routes be di
Lorico [155]
When evacuating victims and personnel currently facing danger to their lives, an establishment should have a safe evacuation routes. The evacuation route should be placed in the Exclusion Zone which means that it is a large site with obstructions and not safe until the safety area is reached. Another would be developing the Contamination Reduction Zone which is designed for individuals that are facing chemical dangers. Decontamination while inside the building is inadvised but would be applied in the arrival to the said zone. An access to potential routes should be available. Obstructions like locks, blocked doors are inadvisable. Routes should be free from items that are not needed within the area. Also, multiple routes that are separated from each other is recommended for evacuating numerous amount of people at the same time or when fire blocks one, there would be another choice available.
8 0
2 years ago
The phosphorus in all biological tissues can be traced back to ________.
bezimeni [28]

Answer:

The phosphorus in all biological tissues can be traced back to phosphorus weathered from rock.

4 0
2 years ago
All of the following are functions of the central nervous system except it interprets signals from the external environment it t
jolli1 [7]

Explanation:

It sends message directly to muscles and glands

5 0
1 year ago
A researcher claims that the Makira Island and the Santa Ana Island flycatchers are diverging into different species. Identify T
natali 33 [55]

Answer:

Prezygotic barriers:

1. Habitat isolation

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.

2. The behavioural isolation: the Flycatchers could have evolved the different mating rituals as a result of which the could not interbreed.

Thus, Habitat isolation and Behavioral isolation are correct.

8 0
1 year ago
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