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guajiro [1.7K]
3 years ago
8

What is photoexcitation

Biology
2 answers:
Dahasolnce [82]3 years ago
8 0
Photoexcitation<span> is the photoelectrochemical process of electron excitation by photon absorption, when the energy of the photon is too low to cause photoionization. The absorption of the photon takes place in accordance with Planck's quantum theory.</span>
USPshnik [31]3 years ago
3 0
<span> process of exciting the atoms or molecules of a substance by the absorption of radiant energy</span>
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Match each movement with the correct label.
Nikolay [14]

Answer:

flexion - depression

extension - elevation

adduction - medial rotation

abduction - lateral rotation

Explanation:

Flexion is the process of bending an arm or leg. It occurs as a result of the contraction of the muscles. Depression is a downward movement. Hence, flexion refers to the depression of an arm or leg.

Extension is the process of stretching the body parts. Elevation is an upward movement. Hence, extension refers to the elevation of body parts.

Adduction is the movement of a limb or other part of the body towards the midline or another part of the body. The movement of the limb towards the midline of the body is known as medial rotation.

Abduction is the movement of a limb or other part of the body away from the midline of the body. The movement of the limb away from the midline of the body is known as lateral rotation.

8 0
3 years ago
Which organelle breaks down sugar molecules that supply energy to the cell
miv72 [106K]
The question is which organelle break down sugar molecules that supply energy to the cell. The answer is mitochondria. 
6 0
3 years ago
Read 2 more answers
Please help I really need this Done and I got so many other pages of hw to do
ratelena [41]

Answer:

1. all different lives in 1 area

2.supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services.

3.heat differences between the forest and the tundra are the climates, animals and plants. The tundra's climate is very cold while the forest is warmer and the tundra receives little sunlight whereas the forest receive direct and constant sunlight. The animals living in the tundra includes the arctic fox, snowy owl,caribou,ermine and polar bear and some tropical forest animals are the howler monkeys,sloths,jaguars,parrots and toucans. There are only a few plants that grow in the tundra. Some of them are the arctic moss, arctic willow, bearberry and pasque flower. These are the differences between the tropical forest and the tundra.

Explanation: hope it helps ::)))

4 0
2 years ago
Which molecular formula corresponds to this model of a chemical compound? (black = carbon; red = oxygen; white =hydrogen)
kolezko [41]
C2H204 is the formula
5 0
3 years ago
What type of weather is assosiated with continental polar air mass
quester [9]

Answer:

Continental Polar Air Masses: cold temperatures and little moisture. Those who live in northern portions of the United States expect cold weather during the winter months. These conditions usually result from the invasion of cold arctic air masses that originate from the snow covered regions of northern Canada.

hope it helps

3 0
4 years ago
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