The answer to this question is:
a.
Phosphorus
This is one of the topmost elements needed by living
organisms. It is not a pure element but reactive to anything in contact. When
combined with some other elements it serves as necessity of life. It is present
in plants or animals in less than 1%.
Simple diffusion and facilitated diffusion both allow molecules to cross the cell membrane without any expenditure of energy by the cell. They are each classified as a type of passive transport.
Answer:
Apicomplexans can be described as parasites which can cause diseases such as malaria inside the host cell. These organisms are known to evolve from the green algae. The remnant chloroplast present in them is used for various drug therapy studies. Their chloroplast can be used to test for various antibiotics and herbicides. This is because their chloroplast has evolutionary similarities with chloroplasts present in other organisms such as the cyanobacteria.
A nuclease (also archaically known as nucleodepolymerase or polynucleotidase) is an enzyme capable of cleaving the phosphodiester bonds between nucleotides of nucleic acids. Nucleases variously effect single and double stranded breaks in their target molecules. In living organisms, they are essential machinery for many aspects of DNA repair. Defects in certain nucleases can cause genetic instability or immunodeficiency.[1] Nucleases are also extensively used in molecular cloning.[2]
Depiction of the restriction enzyme (endonuclease) HindIII cleaving a double-stranded DNA molecule at a valid restriction site (5'–A|AGCTT–3').
There are two primary classifications based on the locus of activity. Exonucleases digest nucleic acids from the ends. Endonucleases act on regions in the middle of target molecules. They are further subcategorized as deoxyribonucleases and ribonucleases. The former acts on DNA, the latter on RNA.[2]
Answer: The main body of most fungi is made up of fine, branching, usually colourless threads called hyphae. Each fungus will have vast numbers of these hyphae, all intertwining to make up a tangled web called the mycelium.
