The process of photosynthesis occurs when green plants use the energy of light to convert carbon dioxide (CO2) and water (H2O) into carbohydrates. Light energy is absorbed by chlorophyll, a photosynthetic pigment of the plant, while air containing carbon dioxide and oxygen enters the plant through the leaf stomata.
Some may assume that movement and locomotion are the same, but these two words have certain differences. Movement is known to be the time when a living organism will move from one place to another. Locomotion means that the movement that the living organism did has made changes to the current position of the organism.
<span>The correct answer is A, B and D. Biogeochemical cycles are central to the ecology of earth system. They make the essentail elements accessible and available for the organisms, and maintain their levels, so that the ecology is ot disrupted. The elements move through abiotic and biotic factors, in these cycles, and a state of equilibrium is maintained n the ecosystem. The carbon dioxide levels are responsible fr the temperature of the earth. If Carbon cycles would not have existed, then there would have been a disruption in maintaining the global temperature. Biogeochemical cycles basically continuously recycles the essential materials, for sustaining the life-forms.</span>
Answer:
Modern theory of evolution explains that "organisms change over time as a result of changes in heritable physical or behavioral traits". Hence this change suggests the loss of vestigial organs.
Explanation:
- Vestigial organ are those which do not have any function but is present in our body.
- According to the modern theory the genetic and physical appearance changes along with the adaptation in environment by the organism.
- So if the organ looses its function in order to sustain and adopt in the changing environment then they become vestigial and slowly disappear.
- This is the common example for the Lamarck's theory of "use and disuse".
The first answer is correct, the second one is D.
