Answer:
The wound healed by a scab.
Explanation:
Cells fromed over the surface of the skin, and began to repair the wound. Resulting in the reparied wound beung a scab.
Answer:
The burning of fossil fuels produces gases like sulfur dioxide and carbon dioxide which trap the sun's heat radiations and increase the overall temperature of the Earth. So the answers are A & B.
Explanation:
Global warming is caused by burning fossil fuels. The <em>carbon dioxide </em>produced as a result captures the heat in the surrounding atmosphere and causes a <u>rise in temperature</u>. Recently, it has been observed that the glaciers are melting and each year the net temperature of the core of the Earth is <em>increasing</em>.
The other gas produced is sulphur dioxide which is responsible for the acid rain. The sulphur dioxide combines with water to form sulphuric acid which causes damage to buildings and people. E.g Taj Mahal, in India is getting corroded by acid rain.
Answer: The body makes sure that food does not get into the lungs because the epiglottis closes the air pathway so that food will not enter it.
When the neuron is at rest, what is primarily responsible for moving potassium ions OUT of the cell?
a concentration gradient
an electrical gradient
both a concentration gradient and an electrical gradient
the sodium-potassium pump
Answer:
a concentration gradient
Explanation:
At rest, the sodium-potassium pumps pump the two potassium ions into the cell for three Na ions moved out of the cell. This creates a higher potassium concentration gradient inside the cell. This concentration gradient moves the K+ out of the cell. Movement of positively charged K+ out of the cells make the inside of the membrane negative with respect to the outside. This is how the negative resting potential is maintained when neurons are nor firing the action potential.
Answer:
b. latent content
Explanation:
According to Sigmund Freud, latent content of the dream is the hidden meaning behind the dream which has an underlying message. It is suppressed by the subconscious mind to safeguard the individual from difficult emotions and feelings. If these thoughts are revealed then the mind can be sent into the state of turmoil so the subconscious mind actively hides these thoughts. They still influence the behavior and conscious thoughts in some way. Freud believed that this latent content should be unrevealed so that people can face their problems directly and realize their true wishes.
Here, the literal dream was that the man was smiling as his wife boarded the plane. The latent content is that the man was not happy with the relationship with his wife and probably wanted to separate therefore he was smiling and feeling joyous when his wife was going away from him in the dream.
