Answer:
D: <em>The light-dependent reactions produce ATP and NADPH; the light-independent reactions use energy stored in ATP and NADPH.</em>
Explanation:
<em>Photosynthesis is a biological process during which green plants synthesize glucose using inorganic raw materials such as water and carbon dioxide. I</em>t is a reaction that takes place in an organelle known as chloroplast, and it consists of 2 reactions;
- the light dependent reaction during which light energy is used to split molecules of water and the resulting electron is used to synthesize ATP and NADPH
- the light independent reaction during which the ATP and NADPH produced in light dependent reaction is used to fix carbon dioxide into glucose.
While the light dependent reaction cannot proceed without light availability, the light independent reaction can proceed both in the presence or absence of light.
<em>Hence, the correct option is D.</em>
Answer:
Dragonflies are important for our environment.
Explanation:
Dragon flies belongs to the ancient family of insects. They are found on every parts of the world and have been from around 300 millions years ago. There are more than 5000 different species of them found in different parts of the world. Conserving dragonflies is important as they considered as a valuable environmental indicators.
Dragon flies are found in the areas where water is available and near grasslands. Their life cycle is an example of an incomplete metamorphosis. The dragon flies lays their eggs near the water or in the water. Dragon flies spends most of the life time as a nymph in the water where they turn into an adult and leave the water. The dragon flies rely on the aquatic ecosystems all through their life. Thus dragonflies are an important indicators of the environment and water quality.
Most of the life cycle of the dragon flies depend on the availability of water and its quality. Polluting water and destroying their habitat will result in the decline of the population of the dragon flies.
This is a true statement.
The levels of organization are a follows:
Atomic - these are the elements
Molecular - atoms of various elements bonded together
Cellular - composed of various molecules
Tissues - collections of cells that work together to perform specific functions
Organs - collections of tissues that work together to perform specific functions
Organ systems - collections of organs that work together to perform specific functions
Organism - a collection of organ systems working together to perform specific functions.