Lipids<span> are all similar in that they are (at least in part) hydrophobic. There are three important families of </span>lipids<span>: fats, phospholipids and steroids. Fats are large molecules made of two types of molecules, glycerol and some type of fatty acid.</span>
Answer:
Enzymes speed up cellular reactions
<span>The important life processes are nutrition, transportation, metabolism, reproduction, respiration, and excretion.
Nutrition is the process of taking food by an organism and utilization of food for energy. This is a vital process which helps living beings to obtain their energy from various sources.
Transportation and transportation system in plants and animals are entirely different. In animals, transportation is carried out through the circulatory system. This system includes heart, blood, and blood carrying blood vessels.
Metabolism is the process in which different types of chemical reactions involved in controlling the living state of the cells in an organism.
Reproduction is the biological process of reproducing their own offspring the continuity of species, generation after generation.
Respiration includes the exchange of gases as well as burning of food. Animals have a well defined respiratory system for respiration.
Elimination of toxic and waste substances from the body is called excretion. Plants produce waste products in the form of two gases</span>
Typically, the nucleus is the most prominent organelle in a cell. Eukaryotic cells have a true nucleus, which means the cell's DNA is surrounded by a membrane. Therefore, the nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes, the cellular organelles responsible for protein synthesis.
Part b is the answer- Mesopelagic and Epipelagic