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
Aleks [24]
3 years ago
13

What do you think would have happened to the deer on the island had wolves NOT been introduced?

Biology
2 answers:
Soloha48 [4]3 years ago
8 0

the deer would be free and would not have to worry about the wolf trying to eat it .but there would be more deer and the deer would be attacked my diffrent animals bc there is more of them

also the animals that ate wolf would die bc the food chain would be broken

allsm [11]3 years ago
4 0

Uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh bob

You might be interested in
Respiration is the process of breaking down Glucose and oxygen into Carbon Dioxide, Water and Energy. This would be an example o
dusya [7]

Answer:

Exothermic because it doesn't take place inside something, rather on the outside. :)

3 0
3 years ago
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
18. Lab Summary - Explain how this experiment models a cell membrane. Use the
DerKrebs [107]

Answer:

Cell membrane is considered as boundary of the cell.

Explanation:

Cell membrane is the boundary of the cell which is selectively permeable that allows the micro-nutrients, water and gases like oxygen and carbondioxide etc through the process of diffusion. When the water goes inside due to diffusion it is the indicator that there is less quantity of water present inside the cell as compared to the external environment, this phenomena is called hypertonic.

8 0
3 years ago
What is the end result of meiosis?
KIM [24]
<span>D is the correct answer. Haploid cells only have one set of chromosomes. Meiosis results in duplication of cells with only one set of chromosomes in each - first chromosomes are copied, then DNA gets swapped, then the cells divide with one chromosome set in each of the four cells.</span>
3 0
3 years ago
Define interstitial fluid, indicating whether it is inside (intracellular) or outside (extracellular) cells.
zmey [24]

Answer:

Interstitial flood bath and surround the cells; present outside the cell

Explanation:

Intracellular fluid: The solutions which are present inside the cell

Extracellular fluids: The solutions that are present outside the cell

Extracellular fluid consists of plasma, interstitial, and transcellular fluid

Interstitial fluid; The fluid that is present in cells spaces and capillaries. It contains the nutreints that are secreted by capillaries through osmosis and metabolic waste of cells.

4 0
4 years ago
Other questions:
  • WILL GIVE THE BRAINLIEST! You must be correct though.
    14·2 answers
  • 6. Which statement concerning the reproductive cells in
    9·1 answer
  • What is the basic cause of ocean tides? A. Gravitational attraction between the Moon and the entire solar system B. Gravitationa
    6·2 answers
  • What was Anton van leeuwenhoek’s contribution in the devolopment of cell theory?
    8·2 answers
  • 1. What is the Zone of Inhibition in this image:
    9·1 answer
  • Please help due tonight 40 points!!
    15·2 answers
  • Can humans cause an imbalance in the food chain
    6·1 answer
  • What are 3 things that are not nucleotides in science
    9·2 answers
  • What is the major different between the particles in a liquid and a gas of the same substance at the same temperature? a The par
    15·1 answer
  • What are the importance of biology? give any two point​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!