Black squirrels have a survival advantage over gray squirrels
Answer:
External fertilization is a mode of reproduction in which a male organism's sperm fertilizes a female organism's egg outside of the female's body.
Explanation:
Answer:
1- The polar section of a phospholipid is the part with the phosphate group. This is sometimes called the polar head of the molecule.
2- The phosphate group is the negatively-charged polar head, which is hydrophilic. The fatty acid chains are the uncharged, nonpolar tails, which are hydrophobic.
Explanation:
Answer:
The correct answer is A), see the explanation below, please
Explanation:
You can see in the graph the different levels of organization from above (molecules, then all the cells, below all these originate specialized tissues and below all the group of organs that make up an organism). The organs are formed by a set of tissues.
