I think it's first quater, hope that helped!
Answer:
Scientists are important for the world because they help people understand the way the world works in very specific ways.It's a system of thought, a way in which we can organize what we know to better understand the way things work.
Explanation:
Answer: A) they use calories from their food to make heat
Explanation: you eat to get energy, and you use that energy to make heat
and its the only one that makes sense
process of elimination, really :)
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.
