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
zaharov [31]
3 years ago
8

Smoking damages you blood vessels which makes it difficult to carry enough of what through your blood

Biology
1 answer:
Dafna11 [192]3 years ago
5 0

Answer:nicotine

Explanation:

You might be interested in
Part A - The glucose-sodium cotransporter
Ulleksa [173]
<span>the glucose-sodium cotransporter in animals, Na+ moves back into the cell down its electrochemical gradient, providing the energy for glucose to move into the cell against its concentration gradient.  
</span>It makes sense css <span> glucose is cotransported with Na+ ions</span>
<span>In cotransport, the energy required to move one solute against its concentration or electrochemical gradient is provided by an ion moving into the cell down its electrochemical gradient. </span>
5 0
3 years ago
P680 is said to be the strongest biological oxidizing agent. Given its function, why is this necessary
mylen [45]

Answer:

The correct answer is - it obtains electrons from the oxygen atom in a water molecule, so it must have a stronger attraction for electrons than oxygen has

Explanation:

P680 known as which contains a reaction center in photosystem two, it is a very strong oxidizing agent that catalyzes the transfer of electrons from H2O to a bound quinone, with the production of O2.

To have a stronger attraction for electrons than oxygen has, P680 gets electrons from the O2 atom in a water molecule.

8 0
3 years ago
Which statement accurately describes tectonic plate movement? Tectonic plate movement can be prevented with planning. Tectonic p
ira [324]

Answer:

The correct answer is Tectonic plate movement is a long-term environmental change.

Explanation:

When tectonic plates in the earth started to move, this process helped the planet to evolve and to shape the continents as exist today.

Different investigation teams have discovered that plates move approximately 2.5 centimeters per year. This movement is the key to the evolution of life and the development of the planet. This slow process involves mountain formation, rocks exposure, and chemical reactions that could stabilize the temperature on the earth´s surface for millions of years. And this stable weather is essential for the evolution of life. Plates movement carries carbon inside and outside of the planet, regulating the amount of carbon dioxide in the atmosphere (greenhouse effect). In this way, it can regulate the temperature. This regulation influence in precipitations,  chemical reactions that involve carbon release and minerals such as calcium, the water flow, volcanic eruptions, among other events. Plates tectonic is also responsible for life, as weathering and mineralization of the rocks release elements and nutrients that are necessary for the life of different organisms.    

So, up to this point, we can say that tectonic plates movement can not be prevented with planning, it does cause environmental change by regulating temperature, and hence it affects organisms.

There are short term effects and long term effects provoked by tectonic plates movement. Earthquakes are examples of short term effects, while mountain formation, ocean formation and, clime regulation are examples of long term changes.

Plates tectonic movement is a very slow process, that might last many years. The Andes formation, for example, started approximately 200 years ago, and these mountains are still rising. The subduction process has not finished as the plates are still moving.  

5 0
3 years ago
Read 2 more answers
The cell membrane performs several important functions in addition to separating the cytoplasm from the outside environment. It
lyudmila [28]

Answer:The cell membrane controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.

Explanation:

5 0
3 years ago
1. All of the following are important roles of the skeletal system EXCEPT
ValentinkaMS [17]
1. D 
2. B
Those are your answers hope this helps!!
5 0
3 years ago
Read 2 more answers
Other questions:
  • If the surface soil is saturated and precipitation increases, there will be
    5·1 answer
  • What controls a tropism?
    5·2 answers
  • 1. What is the difference between biotic and abiotic? __________________________________________________________________
    5·1 answer
  • Which best describes the general air temperature on a cloudy night
    13·2 answers
  • Which is a a symtom that is typical in people who have cancer
    14·2 answers
  • Which statement describes the difference between photosynthesis in chloroplasts and cellular respiration in the mitochondria?
    8·1 answer
  • On a space mission, the gravitational environment can negatively affect the bone density of astronauts. Which accommodation will
    11·2 answers
  • How does water depth affect marine life
    7·1 answer
  • Which of the following is NOT TRUE about cilia?
    6·1 answer
  • TRUE/FALSE. establishing a family history of osteoarthritis, rheumatoid arthritis, or ankylosing spondylitis is important becaus
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!