Its most likely D as an enzyme is made from polypeptide chains that are proteins
hope that helps
Answer:
Why does sexual reproduction result in offspring with genetic variation?
Summary. Sexual reproduction has the potential to produce tremendous genetic variation in offspring. This variation is due to independent assortment and crossing-over during meiosis, and random union of gametes during fertilization.
Explanation:
Answer:
Endoskeleton
Explanation:
An internal skeleton is called an endoskeleton, which is what vertebrates have. A sponge endoskeleton consists of short, sharp rods called spicules
Spicules are made of silica, calcium carbonate, etc.
The burning of fossil fuels does not contribute to ozone layer depletion.
The burning of fossil fuels leads to the release of gases such as oxides of nitrogen, sulfur, and carbon as well as particulate matter such as smoke, ashes, etc.
The oxides released from fossil fuel burning can cause global warming (carbon dioxide), acid rain (SO2), and air pollution (particulate matter).
Ozone layer depletion is caused by pollutants such as halocarbons, solvents, etc.
More on ozone layer depletion can be found here: brainly.com/question/1285852?referrer=searchResults
