answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ratelena [41]
2 years ago
6

The basic solar nebular disk model (SNDM), developed by Russian astronomer Victor Safronov, and was made available in English in

the early ________.
1960s
1970s
1860s
1870s
Biology
2 answers:
Arada [10]2 years ago
7 0
The basic solar nebular disk model (SNDM), developed by Russian astronomer Victor Safronov, and was made available in English in the early 1970's. So your answer is B.<span />
77julia77 [94]2 years ago
3 0

Answer: 1970s

Explanation: The prevailing model for planetary acceleration also known as the fractal assembly dating back to 18th century assumes that the solar system is made up of small grains striking each other chaotically into bigger ones, to form planetesimals.

Plastesimals then collide to form planets. This model was proposed  by Russian astronomer Victor Safronov  and it was further translated in English in 1970s by George Wetherill.

This remained same for almost next 40 years.

You might be interested in
What are similarities and differences between the organization and structure of DNA in bacterial cells and in human cells?
Ilia_Sergeevich [38]
Both human and bacteria cells contain DNA and both have a outer membrane that controls how materials come into and leave the cell.

Predominantly multicellular not in bacteria but in human body

*Cell contains a nucleus and other membrane bound organelles not in bacteria but in human body..

*DNA occurs in a circular form* in bacteria only..

* Ribosomes size in bacteria 70s and in human body 80s

*Capable of growth at temperatures greater than 80 C only in bacteria

*His tone proteins present in cell only in human body cells

* Operons present in DNA only in bacteria..
5 0
2 years ago
How does secreting oil onto their fur help otters maintain homeostasis?
sesenic [268]

Answer:

Oils repel water, so it helps these animals keep their fur dry, which helps them stay warm.

6 0
2 years ago
You are working on a team that is designing a new drug. In order for this drug to work, it must enter the cytoplasm of specific
Anettt [7]

Answer:the answer is B hope this help

Explanation:

6 0
2 years ago
The following picture shows the three primary types of plate boundaries. Which boundary is being shown in label A? an arrow poin
IceJOKER [234]

Answer:

The label A corresponds to Convergent boundary zones  

Explanation:  

When two oceanic plates collide, it occurs oceanic convergence. The thicker and older plate subduces under the other plate, and at this point, it starts the volcanic activity. As the thicker plate descends, it is heated and melted and its materials are incorporated into the mantle. The fast subduction originates magma that ascends to the surface by crevices. This makes place to the formation of grouped <u>volcanic islands</u>, t<u>he island arches</u>. Subduction zones coincide with deep-sea <u>trenches</u> or depressions in the ocean bed. The volcanic islands are arranged in a circumference arch shape, which is bordered by a fossa. Most of these are located in the western Pacific, where the pacific crust is older and thicker, and hence it submerges easier in the mantle.    

6 0
2 years ago
Suppose a human blood cell containing a 0.9 percent solute concentration were put into a container of 0 percent solute solution
Vladimir [108]

Answer and explanation:

If a human blood cell with a 0.9% solute concentration were to be put into a container of 0% solute solution, the cell would get BIGGER.

<u>The cell contains a </u><u>more concentrated solution</u><u> than the solution in the container</u>. The difference in concentration would produce an <em>osmotic gradient</em> that would cause water from the container to get inside the cell to even the concentrations - this is going to make the cell much bigger because the entering water would bloat the cell.

In this example, the solution in the container is hypotonic in relation to the cell, while the solution inside the cell is hypertonic in relation to the solution in the container. This is why the water will be moving from outside of the cell to the inside of the cell.

6 0
1 year ago
Other questions:
  • Describe the cellular makeup and arrangement of a taste bud
    11·1 answer
  • How have the characteristics of each kind of cell put limitations and provided opportunities for the survival and divergence of
    7·1 answer
  • A drop of whiskey on your tongue can be detected in your arm in:
    7·2 answers
  • 19. If a scientist needs to use a large dataset to explore how corn grows in different soils, how would this data be classified?
    15·2 answers
  • What situation best represents how DNA sequencing, PCR, and gene probes might be used together? Multiple Choice Scientists might
    10·1 answer
  • When Casey opens her eyes in the morning she sees a photograph by her bedside. At that point, her eyes are receiving light energ
    10·1 answer
  • During DNA replication, the leading strand is synthesized continuously, whereas the lagging strand is synthesized as Okazaki fra
    15·1 answer
  • Ram is a farmer who wants to grow tomatoes on his field. Give him four suggestions so that he can grow a healthy crop .You can t
    6·1 answer
  • Give two examples of safe, professional usernames. (1-2 sentences. 1.0 points)
    13·1 answer
  • A line graph shows?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!