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Elis [28]
3 years ago
7

So-called "dark matter" cannot be directly observed because

Biology
2 answers:
Inga [223]3 years ago
5 0

Answer:

B. it gives off no radiation

Explanation:

Dark matter is so named because it neither absorbs nor emits light and therefore cannot be directly observed.

Ghella [55]3 years ago
5 0

Answer:

B

Explanation:

it gives off no radiation

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What are two purposes of the cell cycle
fgiga [73]

Answer:

The most basic function of the cell cycle is to duplicate accurately the vast amount of DNA in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells.

Explanation:

7 0
3 years ago
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How is the types of venation in a plant related to the types of root it has and the number of cotyledons in its seeds?​
Natasha2012 [34]

Answer:

dicotyledonous

Explanation:

The veinlets form a network in the leaf lamina that is why the type of venation reticulate meaning network. So all dicots have dicotyledonous seeds, a tap root system and leaves with reticulate venation. ( with some exceptions of dicots having parallel venation in leaves like Calophyllum)

7 0
3 years ago
What part of the flower contains the pollen
musickatia [10]
The part of the flower that contains pollen is called the <span>Stamen</span>
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4 years ago
Which statements accurately describe the Doppler effect? Check all that apply
Mariulka [41]

Answer:

Option (1), (2) and (3).

Explanation:

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Doppler effect helps to learn about the universe behavior. Hubble used the Doppler effect to study the velocity of galaxy. The galaxy motion can be indicated by the wavelength and light.

Thus, the correct answer is option (1), (2) and (3).

5 0
3 years ago
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Look the attachment please!
Alenkinab [10]

The following tests can determine the mineral in a rock specimen:

1. How does the rock crumble or split under pressure?

2. What is the texture of the rock?

3. Observing it under a magnifying lens.

4. Determine the color of the rock



Test 1 and 3 determines if the rock is granular and the types of grains in the rock. Test 3 also determines if the rock has layers hence sedimentary rock.

Determining whether color of the rock is dark or light also helps identify the mineral and type of rock.



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3 years ago
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