Lipids and proteins.
Lipids are macromolecules which provide insulation.
A macromolecule is a large molecule. There are four groups of macromolecules: carbohydrates, proteins, nucleic acids and lipids. Lipids consist of glycerol and fatty acids and are constructed from fats, oils, waxes, phospholipids and steroids. A lipid's function is to insulate the body and provide warmth in cold conditions. It can be concluded that a person with very little body fat gets very cold easily and a person with a lot of body fat gets very warm very quickly.
Proteins are biological macromolecule and mostly composed of enzymes.<span> Proteins play a role in the physical make-up of a cell or acts as a cytoskeleton –maintains cell shape and figure. These proteins plays different roles and works with nucleic acids and other macromolecules in the cells including cell cycle, cell adhesion, immune response and cell indicators. <span> </span></span>
Pros:
Increase in safety.
Less traffic.
Reduced emissions.
Cons:
Eye-contact
Judgement Calls
Snow
Legal Responsibility
Cost
Lack of Trust
<u>There are many more, these are just a few.</u>
An extinction event is a well-known
and quick decrease in the biodiversity on Earth. Such an occurrence
is recognized by a sharp change in the diversity and abundance of multicellular organisms. It happens when the
rate of extinction surges with respect to the rate of speciation.
In other words, this happens when species cannot adapt generally to the change
in the environment. So the correct answer would be letter a.
Answer: Peroxisome
Explanation:
A peroxisome is a membrane-bound organelle usually found in the cytoplasm of almost all eukaryotic cells. It is an oxidative organelle.
Eukaryotes are comprised of one or more cells that contain peroxisomes. The organelles were first discovered by the Belgian scientist Christian de Duve, who was same person that discovered lysosomes.
Peroxisomes contain a variety of enzymes, which primarily function together to get rid of toxic substances in the cell, and in particular, hydrogen peroxide which a common byproduct of cellular metabolism. These organelles contain enzymes that convert the hydrogen peroxide to water, making it remain safe in order to be released back into the cell. Some types of peroxisomes, such as those in liver cells, detoxify alcohol and several other harmful compounds by transferring hydrogen from the poisons to molecules of oxygen (known as oxidation). Other perixosomes are more important for their ability to initiate the production of phospholipids, which are typically used in the formation of membranes.
Structure B. Chloroplasts are the site of ATP production in plant cells
