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
What moves lymph through the lymphatic system
frez [133]
The lymph is moved through the body in its own vessels making a one-way journey from the interstitial spaces to the subclavian veins at the base of the neck
8 0
3 years ago
Phosphofructokinase, a controlling enzyme of glycolysis, is inhibited by ___ and activated by ___.
White raven [17]

PPK is inhibited by higher levels of ATP which is an indication that no more ATP is needed for the time being. Once ATP is consumed, amount of ADP is elevated which activates PPK.

4 0
3 years ago
PLEASE I DONT UNDERSTAND THIS!! qnq
denpristay [2]

Interesting biology question.

In order to answer this question, I hope you understand what is mitosis: cell division that creates two diploid "daughter" cells that are identical to each other. Gametes, remember, are the reproductive cells (egg cells and sperm).

If human gametes were made by mitosis, which is not true, because gametes are made in meiosis, they would simply be diploid with somatic cells. The two gametes would have 92 chromosomes, as each cell has 46 chromosomes. And after each generation, the number of chromosomes would keep doubling, which would be very weird. Remember that the normal amount of chromosomes that a human being has, is 46. Maybe humans would have mutations if that happened.

7 0
3 years ago
What is the best unit to measure to use to find length of a strand of spaghetti
Tpy6a [65]
If I’m not it’s a ruler
8 0
3 years ago
How has the discovery of DNA helped us? Please give as much detail as possible.
Effectus [21]
The discovery of DNA has allowed us to trace ancestors and find out how early humans lived, what they looked like, and who they were.
7 0
3 years ago
Other questions:
  • Some bacteria are able to propel themselves through liquid by means of a structure called the
    12·1 answer
  • Which best describes a hypothesis?
    13·2 answers
  • Which structure can sometimes be found as part of the shoot system? stems leaves roots flowers
    12·1 answer
  • How are the reactants and products of photosynthesis and respiration related to one another?
    10·1 answer
  • An amplified recording of the waves of electrical activity that sweep across the surface of the brain is called a(n):_______
    13·2 answers
  • The convention of hieratic scale can be seen in
    7·1 answer
  • Which ONE of the following do you think provides the MOST DIRECT energy for a plant to move and function?
    14·2 answers
  • Describe the pathway of blood through the heart. Starting with blood entering the heart from the superior and inferior vena cava
    15·1 answer
  • What is an acid?
    11·2 answers
  • What is the genotype of individual B in generation I?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!