Answer:
Plant to animal to atmosphere.
Explanation:
- The carbon cycle describes the recycling of carbon from and back to the atmosphere.
- Plants utilize the carbondioxide present in the atmosphere to produce carbohydrates in the presence of light through the process of photosynthesis.
- When plants are consumed by animals, the carbon becomes a part of the animal.
- Animals break down glucose molecules into energy (ATP), releasing water and carbondioxide in a process called cellular respiration.
- This carbondioxide, as it is useless for animal cells, is released back into the atmosphere through gaseous exchange in the lungs.
Answer:
The Burgess Shale contains the best record of Cambrian animal fossils. The location reveals the presence of creatures originating from the Cambrian explosion, an evolutionary burst of animal origins dating 545 to 525 million years ago. During this period, life was restricted to the world's oceans.
Is this what your looking for?
Have a great rest of your day! :D
Answer: The correct answer is option d
Explanation:
Nucleotide is the basic unit of nucleic acid (DNA and RNA) which store the genetic code of the cell.
It consists of sugar base (ribose or deoxyribose), nitrogenous base (A, T, G, C and U), and phosphate group.
Nucleotides (specially ATP) provides the energy for most of the cellular processes.
They also play crucial role of providing electrons to the electron transport chain. For example, NADH (Nicotinamide adenine dinucleotide- reduced form) and FADH₂ (flavin adenine dinucleotide- reduced form).
However, there is no significant role of nucleotide has been found for providing substrates to citric acid cycle.
Therefore, the correct answer is option d, rest all are the functions of nucleotide.