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Digiron [165]
3 years ago
5

2. What happens to the spectral lines of a star

Biology
1 answer:
Lelu [443]3 years ago
5 0

Answer:

A. The light waves squeeze together increasing wavelength

Explanation:

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What is NOT true about the evidence that fossils provide?
aleksandrvk [35]

Answer:

C. All fossils contain intact DNA that can be sequenced.

Explanation:

Fossils are the impression, trace or preserved remains of once-living thing from past thousands of years such as bones, exoskeletons, objects preserved in amber, and stone imprints of animals or microbes.

Fossils provide evidence about seevral characteristics and features of extinct organism such as evolutionary relationship between organisms and  transitional forms between groups of organisms. but all the fossil do not provide evidence about the intact DNA that can be sequenced because some fossils carry DNA rumnants which do not have the ability to get sequenced.

Hence, the correct option is C.

6 0
3 years ago
What is a combination of two or more metals?
navik [9.2K]
A combination of two or more metals is called and Alloy.
6 0
3 years ago
Please help this is due tomorrow.
velikii [3]

Explanation:

<h2>Answer:-</h2>

In case of Figure A and B,

  • The work is being done perpendicular against the gravity. And we know that when work is done perpendicular to gravity, then zero work is done.

For Example:-

We also need to know that work done in circular motion is zero.

So, work done by electron to orbit around a proton is also zero.

:)

7 0
3 years ago
4. Why might a physician order a test in the spine to diagnose a problem in the head?<br> I
stepan [7]

Answer:

if you have headaches or migraines, your doctor may use a spinal tap to look for signs of infection, bleeding in the brain, to measure the pressure around your brain, or other things that could be causing your pain

Explanation:

6 0
3 years ago
What is a organelle? Give an example(if you can)<br>​
Rina8888 [55]

Answer:

An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body.

Explanation:

Some examples of organelles are endoplasmic reticula, Golgi apparatus, lysosomes, vacuoles, mitochondria, plastids, and nucleus.

7 0
3 years ago
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