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3 years ago

How do scientist measure objects in space

1 answer:

7 0

Hello,

Here is your answer:

The proper answer to this question is "from its gravitational effects on other bodies in the solar system".

Here is how:

For example: If the planet has a moon scientist use a thing called which "can be relatively straightforward" which also determines the mass and height.

Your answer is from its gravitational effects on other bodies in the solar system!

If you need anymore help feel free to ask me!

Hope this helps!

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A woman with normal color vision has a colorblind daughter. what are the genotypes and phenotypes of both parents

vovikov84 [41]

The only possibility of the daughter being colour blind is where both parents have a recessive gene for colour blindness with the father being colour blind as well. so assuming the recessive allele is Xc, then the genotype of the mother is XCXc, where she has a normal colour vision and the father's genotype is XcY, where he is colour blind.

4 0

4 years ago

The brain and spinal cord comprise the ______________ nervous system. the neurons that link the brain and spinal cord to the bod

VashaNatasha [74]

Answer: The Central Nervous System and The Peripheral Nervous System

8 0

3 years ago

Individual organisms evolve over time. true or falce

GenaCL600 [577]

Answer:

False

Explanation:

Individual organisms don't evolve over time. This is because evolution is passed down to offspring over time.

3 0

3 years ago

Read 2 more answers

A student records a physical property of a rock as 2.2 N.

Orlov [11]

Answer:

Explanation:

The N (2.2 N) is Newton. Newton is weight.

5 0

3 years ago

HELP!! DNA was isolated from water samples taken from six different sites. This gel

VladimirAG [237]

After running DNA in a gel, bands of different sizes and species might appear. Scientists know silver carp are at North Shore site 1 because one of the bands in lane 1 matches a band in the positive control (Option C).

When DNA was isolated and run in a gel, many bands migrated to different points.

These bands were the different-sized fragments of DNA samples from different species from the six sites.

Researchers wanted to figure out where the silver carp is.

To do it, they needed to identify the bands on the gel that belonged to the silver carp DNA, so they included negative and positive controls to make comparisons.

<h3>Positive and negative Controls</h3>

Negative and positive controls guarantee the interpretations of the results.

The positive control shows the band sizes that belong to the silver carp DNA.

Any band in the sampling sites that matches one of the positive control bands indicates that the species is present at that site.

The negative control is the opposite. It is the absence of the species' DNA.

<h3>Results interpretation</h3>

As we can see, there are four sites where the bands match one of the bands of the positive control. These are,

North shore site 1
Chicago site 1
Calumet site 1
Calumet site 2

This means that at these four sites, the silver carp is present.

So scientists know silver carp are at North Shore site 1 because one of the bands in lane 1 matches a band in the positive control (Option C).

By looking at the lane of the North Shore site 1, we can also see another band (Thinner and grey). But this band does not match either of the positive control bands. This result suggests that the grey band belongs to another species' DNA.

You can learn more about gel electrophoresis at

brainly.com/question/9437877

brainly.com/question/895793

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3 years ago