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
irina [24]
3 years ago
5

Although the percentage of teens smoking has gone done in recent years,

Biology
2 answers:
erma4kov [3.2K]3 years ago
8 0
B. 20 I believe is the answer.
Effectus [21]3 years ago
8 0

. Although fewer teens smoke than in the past, approximately 20 percent still do. If you’re under 18, smoking is illegal and you’ll face a heavy fine if caught.


Your answer shloud be 20%

You might be interested in
Systole is the rhythmic ________ phase of the cardiac cycle.
Vilka [71]
Contraction is the answer
5 0
3 years ago
True or False: Mollusks have a heart and a closed circulatory system
ycow [4]
False. They have an open <span>circulatory system</span>
5 0
3 years ago
800
DanielleElmas [232]

Answer:

ui66 ubgmgg88cvjfgk00 gvjt77

4 0
3 years ago
Helps activate T cells, which are produced in bone marrow but mature in the thymus gland<br> HELLPP
love history [14]

Answer:

peptide antigens by MHC class II molecules

Explanation:

Helper T cells are activated by peptide antigens by MHC class II molecules. These antigens express on the surface of antigen-presenting cells (APCs). After activation, the T helper cells divide and secrete cytokines  to assist the immune response.

3 0
3 years ago
Which sex chromosome is more dominant ( X or Y ) ?<br><br>​
Tcecarenko [31]

Answer:

x

Explanation:

The X chromosome is significantly longer than the Y chromosome and contains hundreds more genes. Because the additional genes in the X chromosome have no counterpart in the Y chromosome, the X genes are dominant.

hope it helps , pls mark me as brainliest

6 0
3 years ago
Read 2 more answers
Other questions:
  • _________ is the change from liquid to gas. when the body perspires or gets wet, evaporation of the perspiration or other liquid
    6·1 answer
  • One of the proteins made and released by a cell is compared to the protein taken
    9·1 answer
  • The outer layers of most jovian moons are made primarily of
    9·1 answer
  • Compared to stars viewed with the unaided eye, stars viewed with telescope appear
    9·1 answer
  • Which medium does light travel fastest through
    6·2 answers
  • what A hypothesis that two organisms from different species are related to each other is best supported by?
    13·1 answer
  • Pleaseeee help me! :)
    9·2 answers
  • Examples of homeostasis
    8·1 answer
  • Which of the following is a biotic factor that affects plant growth?
    14·1 answer
  • Describe how you<br>lmprove a soil which has<br>tost its nutrients​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!