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
Shtirlitz [24]
3 years ago
10

When you breathe onto a cold window and water droplets appear, it is an example of

Biology
2 answers:
horsena [70]3 years ago
4 0

Answer: Condensation

Explanation:

The water vapor in the air comes in contact with something cool. Say the cold glass of the window.

The molecules slow down and get together. The gaseous water molecules  turns back into water droplets.

This process is known as condensation. Breathing onto a cold window glass makes water droplets due to this process only.

Lena [83]3 years ago
3 0
Condensation because the water droplets are being formed by the water vapor in your breath against the cold window makinng condensation due to the drastic temperature difference between your breath and the window
You might be interested in
During the Elizabethan period, relations between England and Spain were tense. Describe three issues that caused friction betwee
uranmaximum [27]
If you need the answer please add the questions
6 0
3 years ago
Decisions made by societies of the past often cause modern problems. Please select the best answer from the choices provided T F
lbvjy [14]
The answer is False.
3 0
3 years ago
Read 2 more answers
Please describe the signal transmission across a myoneural junction that allows the nervous system to move the muscles of a foot
Tems11 [23]

The contraction of the muscles (whether at the level of the arms or the legs) and more specifically the muscular fibers of the musculoskeletal system, that is to say organs, in the broad sense of the term, allowing the movement, is normally under the total dependence of the nerves which transmit a nervous command.

This command can be considered as a voluntary order (from the cerebral cortex). This nerve impulse then takes the direction of the spinal cord where it is directed by a series of nerves called relays to route the nerve impulse (order) to the muscles.

Then the nerve impulse propagates along the axon and when it reaches the motor plate it causes the release of a substance called neurotransmitter: acetylcholine. The neuroreceptor, in the motor plate, receives the nerve signal that the end of the axon transmits to it by a chemical mediator. Acetylcholine binds to the receptors, triggering a contraction of the muscle cell.

<em>More precisely, acetylcholine is enclosed in vesicles (a kind of tiny sphere-shaped grains) located within the nervous corpuscles located at the end of each neuron. When nerve impulses (stimulation) reach the presynaptic membrane, acetylcholine is released and diffuses into the synaptic cleft (about 50 nanometers wide) filling it. Acetylcholine will at this time bind very briefly to receptors located after the synapse (postsynaptic) and trigger the opening of sodium channels (followed by their closure and an opening of potassium channels). These channels are tiny tubules allowing the passage of ions (atom having lost or gained an electron). </em>

<em>This results in the propagation of an "electric charge" action potential at the origin of the passage of the nerve impulse, in other words of the order given by the brain or by the autonomic nervous system. </em>

<em> </em>

After this first step acetylcholine is then released and degraded by an enzyme called acetylcholinesterase (AChE) located in the synaptic cleft but also on the postsynaptic membrane. The choline thus released is then recaptured by the presynaptic bodies and reused for the synthesis of new acetylcholine molecules.

Acetylcholine is involved in the control of muscles via neuromuscular terminations and viscera or glands and sometimes both. This is how it intervenes to make also work for certain organs like the heart, the salivary glands, the sweat glands, the bladder, the bronchi, the eyes, intestine etc.

<em>A variety of enzymes called cholinesterases allow the rapid inactivation of acetylcholine. The chemical reaction that causes the contraction of the muscle fiber is a brief phenomenon. Indeed, acetylcholine is very rapidly degraded by cholinesterases. As a result, acetylcholine itself cannot be used in drug form. Nevertheless to circumvent these difficulties other drugs reproduce or prevent the effects of this neuromodulator. These are agonists or antagonists respectively. </em>

The muscular fiber is an elongated cell used in the composition of the muscle, which is a fleshy organ with the property of contracting and relaxing. Each muscle cell is surrounded by a membrane containing a cytoplasm called sarcoplasm with myofibrils which are elongate filaments parallel to the major axis of the cell.

5 0
3 years ago
nuris is writing a paper on the scientist who first named cells after studying cork who is her paper about
Vlad1618 [11]

Answer:

Robert Hooke

Explanation:

Robert Hooke is an English scientist/biologist who in 1665 was the first to name CELLS after observing cork on a compound microscope he improved on. Robert Hooke published his discovery in his book titled: Micrographia.

Hence, according to this question where Nuris is writing a paper on the scientist who first named cells after studying cork. Her paper is obviously talking about ROBERT HOOKE who was the first to discover cells in cork.

4 0
2 years ago
Check all the characteristics below that describe
Ad libitum [116K]
One type of atom
a pure substance
8 0
3 years ago
Other questions:
  • The amount of matter something has is _____. A. weight B. length c.
    14·2 answers
  • Explain why the two strands of DNA are replicated in different manners.
    6·1 answer
  • _______ bacteria have a thin cell wall, which stains pink. Gram-negative Gram-positive both a and b none of the above
    15·2 answers
  • In which organelles does the chemical process of photosynthesis occur?
    15·2 answers
  • What would most likely happen to the carbon cycle if there were no more plants on earth
    5·2 answers
  • experimental evidence shows that the process of glycolysis is present and virtually identical in organisms from all three domain
    10·1 answer
  • Currently, most organs that are harvested for transplant are transported from the donor to the recipient packed in ice and must
    10·2 answers
  • In a plant cell, DNA can be found in?
    6·2 answers
  • State two changes which take place in the flower after pollination​
    13·1 answer
  • A collection of orbitals around the nucleus, each having its own energy level.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!