The number of oxygen atoms in a molecule
Yes, rennin<span>. [ren´in].: the milk-curdling enzyme found in the gastric juice of human infants ... was formerly used extensively as a </span>curdling agent<span> by the cheese industry.</span>
Cells because most living things like plant life and humans are made up of cells and animals are made up of cells too!
The examples of species changing over time are statements A, C, and D.
All these changes, such as new types of squash was developed in the garden. weeds evolution to resist chemicals, and the changes in butterflies wing pattern over the years is because of Mutation. Obviously, rabbit's ears are always bigger than mice and Giraffe's neck is always longer than the deer's. In genetics, mutation is the process of permanent alternation of the nucleotide sequence in DNAs.
This question has a two part answer. The first part is that an asteroid hitting the earth and the second part is massive volcanoes erupting around the world.