The diagram shows two different types of fossils from the
same kind of ancient organism.
Which labels complete the diagram?
OX: mold
Y cast
X: cast
Y: mold
OX: trace
Y: imprint
O X: imprint
Y: trace

answer is b x cast y mold

Explanation:

in the picture x is a cast as you and put it over something and y is a mold cause you can fill it with something

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.