B. carbon dioxide
C. chitin
Answer: A. Silicon dioxide
Diatoms are unicellular algae that are found in the freshwater, brackish and marine water. These organisms exhibit cell wall that are made up of silica that is hydrated silicon dioxide. This type of cell wall is called as frustule. The cell wall is divided into two valves called as thecae.
Hydrogen bonds can facilitate both adhesion and cohesion. Cohesion is the attraction between similar substances, while adhesion is the attraction between different substances. Both types of interactions can involve hydrogen bonding.
Hydrogen bonds are an example of both adhesion and cohesion. These are types of intermolecular forces. Cohesion refers to the attraction between particles of the same substance, such as water molecules to each other, which is largely due to hydrogen bonding. Adhesion, on the other hand, refers to the attraction between two different types of substances, such as water to glass, and can also involve hydrogen bonds.
#SPJ6
Answer:
Organisms share a common ancestor, so they also share Co life processes.
Answer:
c
Explanation:
edge2021