The sepal of the plant... im pretty sure...
Answer:
b. a semi-permeable double layer of phospholipids that have hydrophilic heads and hydrophobic tails
Explanation:
B is correct as the cell membrane is selectively semi-permeable. It is selectively semi-permeable because this quality allows it to control what can and can't enter the cell, and how it does so.
The cell membrane also has a phospholipid bi-layer comprised of a double layer of phospholipids which have hydrophilic head and hydrophobic tails. This is because the heads are made of phosphate and are polar and are therefore attracted to water (hydrophilic), while the tails are made of lipids (i.e. fats, oils) which do not mix with water and are therefore hydrophobic.
The properties of each phospholipid is also why they form the double layer structure, the hydrophilic heads naturally face outwards into the water and protect the hydrophobic tails on the inside.
Hope this helped!
Answer:
Option D, a research paper published in an academic journal and an approved PhD dissertation
Explanation:
Nicholas must present her discovery with back up of strong literature review. This literature review must include papers published in good journals and only approved research dissertation.
An internet blog, news article and college level textbook are not considered as an approved study. These are not reviewed or approved by any peer group or associations.
Good papers of any good journals are reviewed and examined thoroughly by the peers and thus they can be used as a backup of any study.
Hence, option D is correct
Adaptation through natural selection
Answer:
Carrying capacity was reached due to the abundance of prey
