Answer:What the text is telling you is about scientist and
it may help you learn about scientist is in a lead work
Explanation:
Calcium provides strength as a element, though it is present as calcium chloride on the exoskeletons.
Answer:
Option C, 12, 6
Explanation:
The number of chromosome and DNA molecule are interpreted through the number of functional centromere and chromatids respectively at each phase of the cell division.
However, the DNA number only changes in the S phase of the cell division as replication occurs in this phase only.
Hence, after meiosis I two daughter cells will be formed with half the chromosome number i.e 3 and number of DNA is equal to 12.
Now, till metaphase II no change occurs. Now at anaphase II DNA remains same while the chromosome number increases to 6
Thus, the correct answer is option C
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
