Answer:
A worker bee defends the hive while the queen bee lays eggs
A prairie dog barks to alert family members when it spots a predator
Explanation:
Just like people, some animals live in communities, where each of them plays a certain role. For those animals, we can say that they live in a social hierarchy.
Examples that describe something like this are the second and fourth ones.
In a hive, there are different types of bees: workers, drones, and a queen. Each of them plays their role, which makes their hive function properly.
Prairie dogs are another example of species that live in large communities. Since they are small and have numerous predators, they rely on each other for protection. They do this by barking whenever they spot a predator, this way alerting other members of their community.
The rest of the statements simply tell about how some species live without mentioning their social life. This is why they are incorrect.
The question is incomplete. However, if we consider this cell as human cell - the cell contain 23 pairs of chromosomes.
Answer:
Chromosomes consists of the constricted DNA associated with the proteins. Different species has different chromosome number. Two main types of chromosomes are heterochromatin and euchromatin.
The human cells contain the 23 pairs of chromosomes or 46 chromosome. If the cell divides by the process of mitosis than the chromosome number will be same in parent as well as the daughter cell. The daughter cell 23 pairs of chromosomes. If the cell divides by the process of mitosis the cell has 23 chromosome number as the meiosis reduces the chromosome number upto half.
Commensalism is when a parasite feeds of of something, but doesn't hurt the host.
Maybe you could drop a ball?
