The scientific term for the formation of a new species is speciation. So, the correct answer would be letter d. :)
The cellular structures that are the machines that essentially build proteins needed for the cell to grown and survive, would be the ribosomes, these small granule like organelles are found throughout the cell, whether they be freely floating in the cytoplasm of the cell or attached to the endoplasmic reticulum. They are the site for where the tRNA's complementary base pair their anticodons to the codons present on the mRNA strand.
Answer:
1. Providing structure --> Collagen makes skin strong yet flexible.
2. Maintaining homeostasis --> Insulin controls the concentration of sugar in the blood.
3. Fighting Disease --> IgA prevents the buildup of viruses and bacteria in the gut.
4. regulating chemical reactions --> Pepsin works in the stomach to speed up the breakdown of food.
The main function of the mitochondria is respiration in the cell. To produce energy from broken down organic molecules. (i.e. carbohydrates.)
