The final phase the 5th phase I think
Answer:
Plasma membrane is made up of a phospholipid bilayer. To be more exact there is two fatty acids making up the polar hydrophilic head, and a phosphate group attached as the non-polar hydrophobic tail. Proteins have many uses in regards to the cell membrane. In a nutshell they are used for diffusion of molecules across the plasma membrane. They are different types of diffusion, most noteably you should try and know the different between passive and active transport the latter of which involves a protien pump. Carbohydrates are used for cushiing the cell membrane and for cell recognition.
Explanation: I learned this in class, I'm in IB Bio HL
Answer:
C) Initially mutation will be the only source of variation in the population
Explanation:
In this experiment, mutation will be the only source of variation in the population.
Therefore, natural selection cannot begin operating immediately on the population because there was no initial variation.
Also initial differences in the population will not be as a result of sexual selection.
Finally, mutation is a random process. Despite the two populations being identical they will accumulate different mutations. Therefore after 100 generations the two populations will not be genetically identical.
Answer: Roundworm is refered to as parasite because it harms it host.
Explanation: Roundworm belongs to nematodes, they have two openings mouth and anus,with segmented body,it derives it nutrients by attaching itself to internal organs of it host by and suck the host nutrients.example of Roundworm is Ascaris
