Answer:
Free nitrogen is important for the living organism becuse nitrogen helps to build the structure of various biomolecules such as amino acids,proteins and nucleic acids such as DNA and RNA.
Explanation:
Importance of free nitrogen in case of animals
Nitrogen is an important constituent of porphyrin ring present in the hemoglobin protein protein which play a significant role in the transport of oxygen and carbon dioxide gas.
Nitrogen is also important in cell growth,repair and tissue development.We cannot intake the atmospheric nitrogen.Nitrogen is acquired by us through the consumption of protein rich diet.
Importance of free nitrogen in case of plants
Nitrogen is an important component of the chlorophyll pigment present in the leaves which helps in photosynthesis a process that deals with the formation of glucose by the utilization of sunlight.
Some parts of the energy rich compound Adenosine triphosphate is made up of Nitrogen.
Answer:
The Calvin cycle refers to the light-independent reactions in photosynthesis that take place in three key steps. Although the Calvin Cycle is not directly dependent on light, it is indirectly dependent on light since the necessary energy carriers ( ATP and NADPH) are products of light-dependent reactions.
Answer:
retroviruses
segmented viruses
Explanation:
A retrovirus is a type of RNA virus that inserts a copy of its genome into the DNA of a host cell that it invades resulting in changing the original genome of that cell. There are about three examples of retroviruses, they are
* HIV
* Human T-lymphotropic virus type 1 (HTLV-1)
* Human T-lymphotropic virus type 2 (HTLV-II)
It should be understood that there is a difference between virus and retrovirus. This is that a retrovirus inserts its genome into the host's genome unlike the virus.
Segmented viruses are viruses that package all of their genome segments into a single particle.
In this case, these viruses have high rate rate of genetic mutation and adaptation.
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: C that protists are single-celled organisms
Explanation:
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
