D- species
A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring.
Answer:A. It was a period of increased solar radiation
Explanation: I took a test and I got it right
The DNA is located in the nucleus of a eukaryotic cell.
Answer:
This experiment is a phenotypic characterization of the cells that are being investigated
.
Explanation:
This type of experiment may result useful to understand how cell traits (i.e., cellular phenotypes) are associated with a genotype and different environmental conditions.
I think
forests maintain the composition of air because of photosynthesis, and the sunlight that lets it put right type of air in position ?
I am sorry, i am new..I tried my best !