1answer.
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
trapecia [35]
4 years ago
8

Which component is present in some viruses but absent in others

Biology
1 answer:
lana66690 [7]4 years ago
5 0
The outer covering of the virus is only present in some viruses. This component is known as the envelope. The envelope is present when the infected cell has appeared.  
You might be interested in
Brief summary of conservation of forests &amp; wildlife <br><br> least 10 page
wel

With the advent of industrialization, several trees have been cut at an alarming rate for raw materials and various other purposes. This felling of trees can be regulated by selective cutting, clear-cutting and shelterwood cutting.

Forest fires are one of the common causes of loss of forests. Sometimes the forest land is set on fire to make the land available for commercial purposes. Once cleared, there can be no vegetation. Natural forest fires are also responsible for the destruction of huge forest covers. Latest fire fighting techniques should be adopted to conserve the forest. However, forest fires are an important part of the ecosystem and it helps replenish nutrients in the soil from dead and decaying matter.

More trees should be planted to increase the forest cover. Trees should be selected according to the geographical conditions of a particular region and proper care should be taken during the growth of trees.

Prevention of exploitation of forestry and forest products is necessary for the conservation of forest.

The existing forests should be protected from diseases by spraying chemicals, antibiotics or development of pest-resistant strains of trees.

8 0
2 years ago
The process of isotopes breaking down and emitting particles, such as alpha or beta, to form a new substance
Sever21 [200]
It is radioactive decay
6 0
3 years ago
Read 2 more answers
The large winds that circle the Earth occur because the equator
padilas [110]
<span>is warmer then the north and the south poles</span>
5 0
3 years ago
During the rock cycle, wind, water, and heat weather rock into _____.
MrMuchimi
The answer is sedimentary rock.
8 0
3 years ago
Read 2 more answers
A dog has how many organs?
vladimir1956 [14]

The body of a dog contains most of its vital organs. The heart, lungs, stomach, and intestines are located there. So too are its genitals, kidneys and bladder. A dog has 13 ribs in its chest which wrap around the heart and lungs.

3 0
3 years ago
Other questions:
  • What circumstances are best for fossils to form? Select all that apply. Rapid burial absence or limited oxygen supply undistrube
    7·2 answers
  • Which of the following would be one way a farmer could increase the amount of available nitrogen in his fields without adding a
    13·2 answers
  • Are viruses alive? Plz help me
    8·1 answer
  • Suppose that after 22 months, guppies from the transplanted population were returned to the source pool. What would most likely
    15·1 answer
  • Define the term active transport in terms of concentration gradient
    8·2 answers
  • What is homeostasis?
    7·1 answer
  • In which structure does sperm develops
    7·2 answers
  • What are like rivers of ice they move and flow through not very quickly at all
    8·1 answer
  • Currently, there are no known risks in genetically modifying crop species. TRUE FALSE
    10·1 answer
  • The image above is of a microscope specimen In your answer explain the following:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!