D. Loss of the upward force opposing gravity
Explanation:
A hanging apple from a tree branch will fall when it loses the upward force opposing gravity. The force of gravity is directed towards the center of the earth and it pushes all bodies downward.
On the apple, the forces acting on it are:
- downward force of gravity
- Upward force holding it by the fruit stalk.
According to Newton's first law "a body will remain in it's state of rest or uniform motion unless an external force acts on it "
The apple is initially at rest when the force of gravity equals the upward force :
Force of gravity = Upward force
The two forces acts in opposite direction and cancel out.
When the downward force is lost by stalk holding the fruit, gravity wins and the fruit falls;
Force of gravity - Upward force = Net force = falling of the fruit
In case we push up the fruit, the upward force overcomes and it moves upward:
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Answer:the stored energy is in form of carbohydrates stored in photosynthetic plants. This is consumed by higher organisms such as man & animals. In these higher organisms, the energy in form of ATP is used for work & activities. Other higher organisms then feed on smaller once such that energy is transferred within the ecosystem. Some of this energy is also lost in the form of heat because the conversion process is not 100% efficient. There is therefore energy balance in the ecosystem.
Explanation:
The things that you can change in the simulation are the number of days, amount of light, and position of light turned off or on. Thus, the correct options are A, C, and E.
<h3>What is Simulation?</h3>
Simulation may be defined as an investigation or instruction technique that propagates authentic events and methodologies under test conditions specifically.
In the simulation, some of the variable factors like the number of days involved in scientific analysis, the quantity of light given to a source, and its position may vary as per the requirement and your hypotheses.
Therefore, it is well described above.
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Answer:
D. Antenna pigments allow more wavelengths of light and more photons to be captured, increasing the efficiency of light capture.
Explanation:
The photosynthetic pigments can be part of the antenna pigments or part of the reaction center. The role of the antenna pigments (large number of protein-bound pigment molecules) is to absorb photons and transfer their energy to the reaction center. Simply saying, antenna pigments are light-harvesting complexes. They are composed of polypeptides, that bind chlorophyll a, chlorophyll b, carotene and xanthophylls.
