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.
I think it isn't right to claim that an attribute developed so the species included can survive better, qualities advance since people with that characteristic survive better and duplicate more.
I hope the answer will help you.
A chloroplast are used for the process of photosynthesis which makes food
Answer:
Dissolved or gaseous substances have to pass through the cell membrane to get into or out of a cell. Diffusion occurs when particles spread. ... They move from a region where they are in high concentration to a region where they are in low concentration.
Explanation:
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Correct answer: A). Sunlight and nutrient availability
Sunlight and nutrients are the two important ingredients that are required by the plants in order to carry out the process of photosynthesis.
Green plants also called producers and they are known to fix solar energy and convert it into organic form as chemical energy. It is the green plant that is responsible for the primary productivity of the ecosystem.
Hence, sunlight and nutrients are the correct answer.
