Answer:
Thermal energy can be transferred by conduction, convection or radiation
Explanation:
Thermal energy is the energy that flows from one point to another due to temperature differences between the points. There are three ways by which thermal energy is transferred which are conduction, convection and radiation.
In conduction, thermal energy is transferred in solids usually metals due to their good heat conductivity. An example is seen in the use of metals for preparing meals. Heat (or thermal energy) is transferred from the fire to the metal to the food.
Convection occurs in fluids (liquids and gases). It usually occurs in a cyclic manner. For example in heating water, thermal energy is gained by water molecules closest to the heat source (at the base of the container) and become lighter causing them to rise to the top. The molecules at the top become denser and sink to the bottom whereby they gain energy and rise in a similar manner. This repeated phenomenon occurs in a cyclic form whereby there's displacement of colder and denser molecules by warmer and lighter molecules. Another example is the occurrence of sea and land breezes.
Radiation occurs without the need of any material medium unlike conduction and convection. In radiation, heat is directly transferred from one point to the other without being transferred by molecules. This is seen in how thermal energy from the sun reaches the earth. In other words, heat is transferred in a vacuum
Answer:
Over time, adaptations offer survival advantages toward moist and humid environments. The animals with these traits survive and reproduce passing on the traits.
Explanation:
Honestly I am not sure but tell me if i helped
The best answer is organisms...
Cells only grow to replace other cells that die off and allow for the continued existence of the organism.
Please correct me if I'm wrong... :)
Answer:
Deoxyribose
Explanation:
DNA stands for "deoxyribonucleic acid" because it has the sugar deoxyribose. It's named because it has one fewer oxygen than ribose. Be careful not to confuse the two sugars--ribose is in RNA, which stands for "ribonucleic acid."
Attached is a picture of the differences between the two sugars.
The giant axon of a squid, shows that hyperpolarizing stimulus is followed by transient inward capacitive current and lasting outward capacitive current.
Hyperpolarization is a change in a cell's membrane potential that makes it more negative. It is the opposite of a depolarization. It inhibits action potentials by increasing the stimulus required to move the membrane potential to the action potential threshold.
Hyperpolarization can be caused, for instance, by opening channels that allow positive ions to move out of the cell (or negative ions to move in).
The hyperpolarization-activated current is an inward current activated by hyperpolarization from the resting potential and is an important modulator of action potential firing frequency in many excitable cells.
To learn more about hyperpolarization here
brainly.com/question/27181895
#SPJ4
