Answer:
B. Fire let humans increase their energy use tenfold
Explanation:
Trust :)))
Answer:
C
Explanation:
Usually if 1 out of 4 children in a family have a different hair color, it is because of the recessive gene passed down from the mother or fathers genes.
The main difference between the organisms are the uses of the appendage and the size and number of certain bones. The human arm is used for a variety of functions while the lizard's and the cat's are used for walking an climbing, the whale's for swimming, the frog's for support and the bird's and the bat's for flying.
The answer is sunflower oil
passive: doesn't require energy, from high to low concentration
active:requires energy, from low to high concentration
i dont know maybe