Answer:
The preferable option will be - D.
D. CO₂ is needed to produce sugars in the Calvin cycle.
Explanation:
- We know that CO₂ is the prime element for photosynthesis.
- CO₂ is the only source that supplies carbons in this process. With the help of CO₂, water, light, minerals, and chlorophyll, six-carbon glucose is formed.
- This glucose is converted to starch and is stored in fruits or in the parts of plants for further use.
Answer:
False. M phase is shorter than interphase; cells spend most of their time in interphase.
The correct option is this: The forelimbs (or possibly hind limbs) will be used for the new purpose of flight. This new function will arise through many gradual steps, and there will be aspects of the wing that reflect its history and are not perfectly suited for flight.
Adaptation refers to the physical or behavioral traits that an organism develop in order to enhance its suitability to its environment. Evolution on the other hand is always brought about by natural selection; organisms that are well adapted to their environments are naturally selected to survive, reproduce and pass their beneficial traits to their offspring. This is a gradual process that occurs over a long period of time.
For wings to develop in a four limbed organism, the organism has to start using the hind or the fore limbs for flight (New adaptive behavior). The genes that support this new behavior will be passed to its offspring and subsequent generations over a long period of time, until the wings are perfectly suited for flight.
Answer:
<em>The correct option is D) to maintain the diversity of the living environment</em>
Explanation:
Forests, such as the oak forest, are of utmost ecological importance as they are rich in wild-life animals and plants. They biodiversity in such areas is huge as there are different types of plants and animals living here. Even if we have to cut down a forest, we should try to protect a section of it so that all this huge biodiversity is not lost. Cutting down the whole oak forest will result in no habitat for the different animals that lived there. As a result, many species of organisms might become extinct.
Answer:
cilia cells, goblet cells
Explanation: