Answer:
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea.
Answer:
1.(D)
2.(D)
3.(C)
4.(B)
5.(B)
6.(C)
7.(B)
8.(D)
9.(A)
10.(africa)
11.(D)
12(B)
13(?)Convergent boundaries
14(C)
15(A0
16(Sturdy Desks and Tables. The safest place to perform the 'duck, cover, and hold' action is under a sturdy desk or table. ...
Bed or Closet. When you are in bed during an earthquake, stay there. ...
A Room with No Windows. Stay away from glass windows during an earthquake. ...
Door Frame. ...
Outside your Home.
So C?
17(C)
18(D)
19(B or A)
20(B)
Extra credit question
Earth is special because it is an ocean planet. Water covers 70 percent of Earth's surface. Earth's atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe.There are multiple reasons for earth to be a special planet. Reasons are as follows
1.Earth is the only planet known where intelligent life exist.
2.It lies in the circumstellar habitable zone (CHZ). CHZ is defined in the image given below.
3. Earth has a unique magnetic field which protects the earth from the harmful solar winds. These solar winds played a role in transforming venus into hell.
4. Earth has Van Allen radiation belts which protects it from cosmic rays.
5. Our large neighbour Jupiter protects is from many comets and asteroids that come from the keiper belt and Oort cloud.
6. Earth's atmosphere is favorable to support life on earth. This atmosphere consists of different gases in adequate amount. If the percentage of gases would differ then life on earth may face serious consequences.
7. Tectonic plates of earth differentiates it from most other planets.
8. Earth has a solid crust unlike the gaseous planets.
9. Earth has been gifted with a medium sized star which release solar winds and protect us from the harmful radiation of outer space.
Brainliest?
Explanation:
Answer:
Soil Erosion
Explanation:
Basically, tillage breaks soil up, destroying its overall structure. It encourages surface runoff and therefore soil erodes more easily. In some cases soil erosion is beneficial, but in most cases, it is not. Tillage has also been found to cause the emissions of more toxic gases such as N20.
B. Consumers produce Co2 for which plants need to allow photosynthesis to turn back into oxygen.
Answer:
The age of the cell
Explanation:
Assuming your question was meant to be "Which of the following is NOT a difference between Prokaryotic and Eukaryotic cells?", everything except the age is different.
Prokaryotes are simple cells that have no nucleus and are generally small. Eukaryotes are complex cells that have a nucleus, organelles, and are much bigger than prokaryotes.
