Sponges, medusa and polyp, gymnosperm
Answer:
Mutation
Explanation:
A mutation can be described as any change which occurs in the DNA of an organism. These mutations can be beneficial or harmful for a species of organisms. Mutations are one of the reasons that variations arise among the organisms of a species. If a certain kind of mutation is favored by natural selection, then it can increase in the allele frequency and might completely eradicate the previous wildlife characteristics of a species.
1s orbital
Explanation:
The electron has to go into the first energy level, in the 1s orbital. Helium, with two protons, will have two electrons. These are placed one at a time into the 1s orbital. This makes helium a very contented atom.
Answer:
1.Carbon is the basis of all living things
3.Nitrogen is found in certain foods
4.Oxygen and hydrogen combine with each other to form water
6.Carbon, oxygen, hydrogen, nitrogen, phosphorus and sulfur are found in organic compounds
Explanation:
