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
laila [671]
3 years ago
6

Why do leaves fall off of trees during fall and winter

Biology
2 answers:
Natalija [7]3 years ago
8 0
Because the trees go into a different state during the seasons
TiliK225 [7]3 years ago
6 0
as the days grow shorter and colder, those changes trigger a hormone in leaf-dropping trees that sends a chemical message to every leaf that says, in essence, "Time to go! Let's part company!"
You might be interested in
What is an environmental cost of fossil fuels????<br><br>​
suter [353]

Answer:

Researchers estimate global economic losses from fossil fuel air pollution at $2.9 trillion each year, or approximately 3.3 percent of global GDP.

3 0
2 years ago
Sam and Jenny ride their bikes at a constant velocity of 3 miles per hour Net force:
stiv31 [10]

Sam and Jenny ride their bikes at a constant velocity of 3 miles per hour.

Explanation:

Here we see that both of them are moving at a constant velocity which means their speed is constant and they are moving in a straight line.

Zero acceleration is implied on the bikes and the net force is BALANCED.

When forces are in balance, acceleration is zero. Velocity is constant and there is no net or unbalanced force.


4 0
3 years ago
Which term is used to describe a group of arctic foxes that live in part of Alaska's Arctic National Wildlife Refuge?
Usimov [2.4K]

Answer:

community

Explanation:

5 0
3 years ago
Read 2 more answers
If you help me ill mark you brainliest​
Ymorist [56]

I had to take a screenshot of my response since it was getting flagged for being inappropriate for some reason.

7 0
3 years ago
During a marathon, runners draw heavily on their internal reserves of glycogen (carbohydrate) and triglycerides (fat) to fuel mu
g100num [7]

Answer:

The activity of cyclic AMP phosphodiesterase is prevented by caffeine. The caffeine prevents further dissociation of cAMP, which eventually increases the response within the body. The activity of neurotransmitters, that is, of noradrenaline or epinephrine, gets increased due to enhancement in response.  

This further enhances the activity of the heart, the rate of muscle contractions, blood pressure that further helps in delivering more oxygen to the brain, and other parts of the body. Thus, the inhibition of the enzyme cyclic AMP phosphodiesterase helps the athletes to prevent the wall.  

7 0
3 years ago
Other questions:
  • How do Lions ambush their prey?
    5·1 answer
  • I do not understand because I was not in class. Can you please help me answer these questions.
    14·1 answer
  • Angie hit the back of her head and now she has difficulty walking. her doctor found that her spinal cord is intact but her _____
    12·1 answer
  • several scientist make the same observations about the effect of sunlight on algae. this set of observations forms a?
    15·2 answers
  • In a forest ecosystem, seeds are eaten by mice, which are eaten by hawks. If the population of hawks suddenly increased:
    10·1 answer
  • How does gravity cause plates to move?<br> Explain
    8·2 answers
  • Please help with my biology
    13·1 answer
  • Explain why temperature changes occur. <br> plz help
    6·1 answer
  • What is the difference between specialized plant and animal cells
    10·2 answers
  • Enzymes are needed to digest food correctly. Which cell part needs to be functioning correctly for the enzymes to be present?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!