Nucleus, rough and smooth ER, mitochondria, and vacuoles.
Humans belong to the D) chordates group
Answer:
An invasive species thrives in its new ecosystem and out-competes native species. So, some factors are dominance, environment, predators, and resource availability.
Answer:
Your body will always try to keep you at the same temperature, for example, even when it's raining. Asthma is a good example of homeostasis gone wrong and the body acts out of proportion to a stimulus starting a process that leads to symptoms.
There are some reasons which could be mentioned:
1)Energy is lost as heat at each feeding level
2)Consumers who feed directly on plants have more energy for themselves than consumers feeding on other consumers. Indeed, energy again is lost in each level.
3)Feeding cattle is not productive, because energy must be transferred from plants to the cattle and then to people.
