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ANTONII [103]
3 years ago
14

Which constellation is home to the star forming nebula called the heart nebula?

Biology
1 answer:
miv72 [106K]3 years ago
5 0
The milky way is your answer
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cell organelles In this lab, you will try to view as many cell organelles as you can at different magnification levels. Write an
CaHeK987 [17]

Answer:

What is the effect of power/magnification on the frequency and size of organelles under a microscope?

Explanation:

Organelles within the cell are responsible for carrying out various functions. Some cells are more specialized than others, and may have particular organelles at a higher frequency, or showing a variation in size; sub-cellular structures become more visible at higher magnifications under the microscope.

Hypotheses:

  • organelle A's frequency decreases while B's frequency increases at higher magnifications
  • organelle A's size increases while B's size decreases at higher magnifications

<em />

<em>Dependent variables: size and frequency cell organelles</em>

<em>Independent variable:  power/magnification at low (x4), medium(x10) and high  (x40)</em>

<em>Controlled variables: Type of organelles, microscope used, cell examined, </em>

Method:

1. Examine the organelles A and B in a cell mounted on a slide; use the fine adjustment to focus on the cell.

  • Frequency:  What is the average number of organelle A versus B, seen at low (x4), medium (x10) and high (x40) magnifications?
  • Size: Measure the average diameter of organelle A versus B using an ocular micrometer at low, medium and high magnification.

2. Record and tabulate observations.

5 0
3 years ago
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Please help! I need to know your opinions. If you don't have one or aren't in high school then don't answer because I'll report.
jeka94

Answer:

I am in high school but put me in as collage!

Explanation:

B. Astronomy

please mark brainliest have a good day:)

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3 years ago
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The lines of latitude are located east and west of the prime meridian. True or false
lisabon 2012 [21]
The answers is false
8 0
3 years ago
Which of the following is an example of natural selection?
xxMikexx [17]
I would say D because it involves more selection but if that one is wrong it is most likely B. But I would go with D
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3 years ago
CO2 is returned to the atmosphere by all methods EXCEPT
SIZIF [17.4K]
CO2 is returned to the atmosphere by all methods except photosynthesis.
Through photosynthesis, a plant actually takes CO2 from the atmosphere and produces oxygen in return. 
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3 years ago
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