Answer: A niche refers to the ecological role of organisms in its community.
Example snake.
Three niches of snake are:
1. Predators- they can act as pests control in the field (one of their sources of food is rats)
2. Prey- they can also be a source of food to other higher ranking species in the food web such as the eagle.
3. Contribute to the balance of the food web.
Answer:
When you exercise it causes your muscles and your pearl your pures in your skin to produce sweat and cause pain to your nervous system telling you that is exhausting
Answer:
Explanation:
Used nuclear fuel can be recycled to make new fuel and byproducts. More than 90% of its potential energy remains in the fuel, even after five years of operation in a reactor. The United States does not currently recycle used nuclear fuel but foreign countries, such as France, do.
Answer:
A. The DNA molecule opens up, separating into two strands.
B. Nucleotides match up and join the open DNA strands
C. Two new DNA molecules are formed.
From node to node on a myelinated axon.
hope this helps :)