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
adell [148]
3 years ago
9

Please Help!

Biology
1 answer:
Nat2105 [25]3 years ago
6 0
I would say riding a bike
You might be interested in
Why is cigaratte smoking injurious to health ?
Citrus2011 [14]

Explanation:

cigaratte smoking is injurious to health because it affects our lungs,heart and different internal organs of our body which is cause of cancer and other non curable diseases.

3 0
2 years ago
Read 2 more answers
What causes earthquakes and at what types of plate boundaries are earthquakes common? Explain.
sashaice [31]
Transform plate boundaries because when two plate boundaries slide past each other, they create vibrations. A large amount of those vibrations are earthquakes
3 0
3 years ago
Answer all 20 and I can give you brainliest
ExtremeBDS [4]

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:

5 0
3 years ago
What role do roots play in photosynthesis?
Alexandra [31]
Each plant contains a branched system of tubes called xylem, which is responsible for water transport from the roots<span> (where it is taken up) to the leaves (where it is used in </span>photosynthesis<span>).

hope this answers your question</span>
8 0
3 years ago
Explain the importance of immunological memory cells. Describe in detail how and when memory cells arise and explain how they fo
Vlad1618 [11]

Explanation:

<em>Immunological memory</em> is the property of the immune system to store information about a stimulus so it can mount an effective response if it encounters the same stimulus again being this second response quicker and stronger even after years since the first encounter.

This kind of response is dependent on many subpopulations within T and B lymphocytes and NK cells. When encountering an antigen, B cells recognize it by membrane antibody specifically binding to the antigen and then being activated to expand rapidly with their progeny clones differentiating into plasma and memory B cells, these last ones have a long life span to remain in the body, ready when another encounter with the same stimulus occurs, this is how the basis for effective immunizations happens.

I hope you find this information useful! Good luck!

4 0
3 years ago
Other questions:
  • in photosynthesis, electrons that travel through the electron transport chain in the thylakoid membrane come from ?
    13·1 answer
  • How does phagocytosis work?​
    7·2 answers
  • How would the bacteria most likely respond to survive
    11·1 answer
  • According to Kübler-Ross, the first reactive phase in a person confronting death is
    12·2 answers
  • The neuromuscular junction is a connection between a neuron and a __________.
    7·1 answer
  • I need help with my biology homework I need to answer this question a student is given a tube containing a liquid nutrient mediu
    10·1 answer
  • Describe the process by which vaccines induce immunity.
    15·1 answer
  • Which of the following lists BEST describes increasing levels of organization of the genetic material in living organisms?
    11·1 answer
  • To explain scientific biological phenomena, scientists use a technique called
    13·1 answer
  • during which checkpoint would damaged or improperly replicated dna halt progression through the cell cycle?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!