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lora16 [44]
2 years ago
11

Which circumstances could be sources of error within the experiment? Check all that apply

Biology
2 answers:
gizmo_the_mogwai [7]2 years ago
6 0

Answer:

A, B, C, E

Explanation:

A. not fully submerging the object when doing the fluid displacement procedure.

B. water that is left behind in the collection container when it is transferred for measurement.

C. water that soaks into the materials of the balls, affecting the mass in repeated trials.

E. water in the bucket, approximated to the closest 10 mL due to surface tension at the top of the bucket.

zheka24 [161]2 years ago
4 0

Answer:

A)

B)

C)

E)

The person above me is also correct!

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In 1998, paleoanthropologist Rick Potts published an article in The Yearbook of Physical Anthropology, a peer-reviewed journal.
Nitella [24]

This question is incomplete because the options are missing; here is the missing section:

Which would most likely be found in his paper?

A. A review of modern human anatomical structure.

B. Evidence of changing environmental conditions, with references.

C. The reasons competing hypotheses are wrong.

D. His opinion of what will happen to the survival of the human race.

The answer to this question is B. Evidence of changing environmental conditions, with references.

Explanation:

In texts such as scientific articles, the central point is expressed by the main claim or hypothesis as this is supported and explained through evidence in the articles. This means Potts article focuses on the environmental changes and how these contributed to the human species adaptability.

Due to this, it is expected the article explains the changes in environmental conditions, and the connection of these to adaptability. Moreover, because this is a scientific article all ideas should be supported with evidence collected by the author including references to other reliable sources. Thus, "evidence of changing environmental conditions, with references" is expected to be found in this article.

5 0
2 years ago
The frequency of a drum note is 20Hz. what does this tell you about the drum skin movement
Sergio [31]

Answer:

The drum skin oscillates 20 times per second

Explanation:

The frequency of a note is dependent on the mechanical activities that occur when it is produced. A drum is beaten in this case. The oscillation of the drum skin transfers sound waves to the air particles which move at the same frequency before reaching our ears.

If the frequency of the sound wave is 20 Hz this means that the wave is oscillating 20 times in one second. For the drum to produce such a sound, the skin must have been oscillating at the same frequency of 20 oscillations per second too.

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1 year ago
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An organism that grows slowly in the cold but has an optimum growth temperature of 32°C is called a(n) ______. Select one: a. ex
sertanlavr [38]

Answer:

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Explanation:

These kind of living things, can support extreme changes of conditions, like in this example, they cam growth in a perfect 32 ºC, but they can still reproduce and live in a very cold temperature.

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Alecsey [184]

Answer:

um it depends on how much money you have at that point

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This image shows how a lunar eclipse occurs. A lunar eclipse occurs when the Moon passes directly behind Earth into its umbra, o
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Because the earths orbit around the Sun is not in the same plane as the moon orbit around the earth.

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