Starfish, or more accurately sea stars, fill a niche as predator and prey in marine ecosystems close to shore. With more than 18,000 species in the world, they range from the tropics to the Pacific Northwest and further north. They can grow larger than a foot across and can have as many as 40 arms. While sea stars are known for their ability to regrow lost arms, they have an unusual digestive system, too.
Answer:
In mathematics it is used for dividing a number, whereas in science it is element which helps in proving certain effects. So they are different for different subject.
Explanation:
In mathematics factor is to break or divide in to numbers which can be further multiplied to get the actual number. Example 6 = 3 
2. here 2 and 3 are factors of 6. But when it comes to science factors are the elements that contributes something to result. It may be in controlled environment or naturally occurring one. The lab experiments are basically done in the controlled environment to check the factor effect over the experiment.
No , you get some energy from the fruit but not all.All of the energy comes from the things that you do and consume during the day.
Answer: Friction
Explanation: Sir Isaac Newton, a soccer ball on the grass will stay where it is unless acted on by a force.
