Explanation:
What happens during daytime is, oxygen that gets trapped between filaments of algae, moves them to the surface and during night as O2 is not produced, they slowly sink to lower depths, and you don't see them
The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
The right answer is C. thalamus, spinal cord, somatosensory cortex.
The somesthetic system, or somatic sensory system, groups the nervous mechanisms responsible for collecting somatic sensations (the sensations of the body). This is the meaning that tells us
about the state of our body
on our environment, through our body.
Somesthesia is an integral part of different sensory modalities of perception as well as the specific senses of hearing, vision, taste, smell, balance.
It is composed of the somatosensory thalamus, spinal cord, and somatosensory cortical areas.
Answer:
RNA world hypothesis.
Explanation:
RNA is present as the genetic material in some viruses only. RNA is produced from the template DNA by the process of transcription and helps in the protein gene expression.
According to RNA world hypothesis, RNA is considered to be the first genetic material as it has the ability to store the genetic material. The oxyribose sugar makes the RNA more reactive than the DNA molecule. The RNA also has the ability to work enzyme known as ribozyme. Hence, RNA has the ability to store the information and acts as catalyst.
Thus, the answer is RNA world hypothesis.
