Use the following table to answer the question: Element

Mass Number

Atomic Number

Aluminum

27

13

Nitrogen

14

7

Helium

4

2

Fluorine

19

9

please help

Which element has the least neutrons in the nucleus?
Aluminum
Nitrogen
Helium
Fluorine

Explain the importance of producers, primary consumers, secondary consumers and decomposers in an ecosystem.

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. agouti x albino a) 1/2 albino, 1/2 agouti b) all agouti c) 3/4 agouti, 1/4 albino