Answer:
Oxygen and nitrogen
Explanation:
Oxygen and nitrogen are very electronegative than any other element in the periodic table hence they have more tendency to attract an electron towards itself
7: symbiotic relationship
8: mutualism
9: commensalism
Answer:
Eggs are developed and released by the <em>ovaries.</em>
Sperm is produced by the <em>testes</em>.
Explanation:
Ovaries are the site in females where the production of egg takes place. After the formation of an egg, the egg is transported to the fallopian tube, where it might undergo fertilization if a sperm unites with it.
Sperms are the male reproductive cells which are produced by many animals. The sperms are produced in the testes of males.
The sperm and the egg unite to form a fertilized zygote.
The similarities between bones of humans and other animals shows that every living creature on earth has a common ancestor, even if that common ancestor is as simple as a sing-celled organism.
Answer:
(UV) radiation is with recent research showing that UV radiation has the capacity to degrade folate in human blood and skin.
